anonymous
  • anonymous
Line M is represented by the following equation: x − y = 8 Which equation completes the system that is satisfied by the solution (18, 10)? 2x − y = 26 x + y = 18 2x − 2y = 36 x − y = −28
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
@angel_mejia
Vocaloid
  • Vocaloid
(18,10) tells us that x = 18 and y = 10 so, go through each answer choice one by one, and plug in x = 18 and y = 10, and see which one is true
anonymous
  • anonymous
c? @Vocaloid

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More answers

Vocaloid
  • Vocaloid
nope, check your math again
anonymous
  • anonymous
b?
Vocaloid
  • Vocaloid
please do not guess, go through each answer choice one by one and plug in the numbers
Vocaloid
  • Vocaloid
start with the first choice: 2x − y = 26, true or false?
anonymous
  • anonymous
I'm having really hard time and have a huge time crunch
Vocaloid
  • Vocaloid
again, start with the first choice... 2x - y = ?
anonymous
  • anonymous
i don't even know where to start :c
Vocaloid
  • Vocaloid
x = 18 y = 10 2x = ?
anonymous
  • anonymous
36?
Vocaloid
  • Vocaloid
right, so 2x - y = ?
anonymous
  • anonymous
26
Vocaloid
  • Vocaloid
right. the first choice says that 2x − y = 26, so this is our answer
anonymous
  • anonymous
thank u sm,can u do another plz?
Vocaloid
  • Vocaloid
sure
anonymous
  • anonymous
give me one sec
anonymous
  • anonymous
Line M is represented by the following equation: x + y = −1 What is most likely the equation for line P so the set of equations has infinitely many solutions? 2x + 2y = 2 2x + 2y = 4 2x + 2y = −2 x − y = 1
Vocaloid
  • Vocaloid
hint: multiply x + y = -1 by 2 on both sides
anonymous
  • anonymous
im so confused ;c
Vocaloid
  • Vocaloid
just multiply everything by 2.... x + y = -1
anonymous
  • anonymous
so x+y=-1 multiplied by 2 would be 2x+2y=-2?
Vocaloid
  • Vocaloid
yes, and that's your answer
anonymous
  • anonymous
thank u! one more?
Vocaloid
  • Vocaloid
sure..
anonymous
  • anonymous
Two lines, A and B, are represented by the following equations: Line A: y = x − 1 Line B: y = −3x + 11 Which of the following options shows the solution to the system of equations and explains why? (3, 2), because the point does not lie on any axis (3, 2), because one of the lines passes through this point (3, 2), because the point lies between the two axes (3, 2), because both lines pass through this point
Vocaloid
  • Vocaloid
hint: first multiply line A by 3
anonymous
  • anonymous
y=x -3?
anonymous
  • anonymous
@Vocaloid
Vocaloid
  • Vocaloid
not quite, you need to multiply EVERYTHING by 3
anonymous
  • anonymous
3y=3x-3
Vocaloid
  • Vocaloid
right, next step: line A: 3y = 3x - 3 line B: y = -3x + 11 now add line A + line B
anonymous
  • anonymous
3y=0x+14
Vocaloid
  • Vocaloid
nope, check your math again... 3y + y = ?
anonymous
  • anonymous
im not sure
Vocaloid
  • Vocaloid
3y + y = __y fill in the blank
anonymous
  • anonymous
4y
anonymous
  • anonymous
what does y equal?
Vocaloid
  • Vocaloid
we're about to find out! now, when we add line A and line B together, we get 4y on the left side. and -3+11 on the right side. so 4y = -3+11
Vocaloid
  • Vocaloid
-3+11 = ?
anonymous
  • anonymous
8
Vocaloid
  • Vocaloid
right. so 4y = 8 what is y?
anonymous
  • anonymous
4?
Vocaloid
  • Vocaloid
4y = 8 divide both sides by 4, what do you get?
anonymous
  • anonymous
1,2
Vocaloid
  • Vocaloid
right, so we get y = 2
Vocaloid
  • Vocaloid
now we go to our second equation: y = -3x + 11 now we plug in y = 2 2 = -3x + 11 what is x?
anonymous
  • anonymous
I'm sorry i have to go to lunch with my fan and this is my last question, can i plz just have the answer

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