Question

how do you find the point that the lines intersect y=-x+8 and y=4x-7

Answer 1

without a graph

Answer 2

Plug in y in one of the equations, then solve for x.

Answer 3

Without a graph? Oh, let me try to remember this

Answer 4

When you find x, plug it in any of the two equations to find y.

Answer 5

x=3

Answer 6

?

Answer 7

How did you get that ?

Answer 8

You can do what @math&ing001 is saying, or you could set them equal to each other

Answer 9

-x+8 = 4x-7
We need to solve for x for this equation.

Answer 10

4x-7=-x+8
5x-7=8
5x=15
x=3

Answer 11

Yeah correct !

Answer 12

Yep, now plug in 3 for x and solve for y

Answer 13

He can't use a graph @Nnesha

Answer 14

then you just solve like a regular equation?

Answer 15

Yeah plug that value in any of the two equations to get the other coordinate of the point of intersection.

Answer 16

@anthony81864327158756 , please don't spam others' posts with your question.

Answer 17

I understand thanks

Answer 18

Will you please delete those replies

Answer 19

welcome @Dragon3death !