Help for Metal Please
Consider the following pair of equations:
−x − y = −5
y = x + 1
If the two equations are graphed, at what point do the lines representing the two equations intersect?
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I don't want metal.
There are two equations in this question
-x -y =-5
x+y=5 ...........eq#1 since,- signs are cancelled from each side
now put the value of y of eq#2 into eq#1 at the place y
it would be
x +x+1 =5
2x = 5-1
now put x=2 in eq#2 you will get the value of y
so answer will be (x,y)=(2,3)
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Well I am not the best at prealgebra so I need help with this
-y-x =-5 (1)
multiply by minus to get: -(-y) = -(x-5)
which becomes y + x= 5
so you have -y = x -5 (1)
and y=x +1 (2)
Now to things that are equal to the same thing are equal to each other so:
can you solve that?
ok I understand it so far but I dont understand what else to do
bring x's to one side and integers to the other side
Is that o good! or o bad?
hey do you want to know a faster trick to complete this...like...just plug in your answer option into the equation...
-x-y= -5 ......-(2)-3=?
y=x+1 .... y=(2)+3...
Ok I will try it
Thank You for yalls help
yes and here is an even faster way:
-y-x = -5
-y-x = -5
y-x = 1
Add them and the y's cancel, leaving -2x = -4 =>x=2