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nope, check your math again

b?

please do not guess, go through each answer choice one by one and plug in the numbers

start with the first choice:
2x − y = 26, true or false?

I'm having really hard time and have a huge time crunch

again, start with the first choice...
2x - y = ?

i don't even know where to start :c

x = 18
y = 10
2x = ?

36?

right, so 2x - y = ?

26

right.
the first choice says that 2x − y = 26, so this is our answer

thank u sm,can u do another plz?

sure

give me one sec

hint:
multiply x + y = -1 by 2 on both sides

im so confused ;c

just multiply everything by 2....
x + y = -1

so x+y=-1 multiplied by 2 would be 2x+2y=-2?

yes, and that's your answer

thank u! one more?

sure..

hint: first multiply line A by 3

y=x -3?

not quite, you need to multiply EVERYTHING by 3

3y=3x-3

right, next step:
line A: 3y = 3x - 3
line B: y = -3x + 11
now add line A + line B

3y=0x+14

nope, check your math again...
3y + y = ?

im not sure

3y + y = __y
fill in the blank

4y

what does y equal?

-3+11 = ?

right.
so 4y = 8
what is y?

4?

4y = 8
divide both sides by 4, what do you get?

1,2

right, so we get y = 2

now we go to our second equation:
y = -3x + 11
now we plug in y = 2
2 = -3x + 11
what is x?