Y=4x+3 y=-2x-9 solve for substitution

Question

asked Apr 1, 2019 142k views

1 Answer

Kracejic · Answer 1 · 2019-04-07T19:33:51+0000

To solve this, we multiply the second equation by -2:
y = 4x+ 3
-2y = 4x + 18
Subtract:
y = 4x + 3
-(-2y = 4x + 18)
3y = 15
y = 5
Input this:
5 = 4x + 3
4x = 2
x = 1/2
(1/2, 5)

Y=4x+3 y=-2x-9 solve for substitution

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

Please log in or register to add a comment.

No related questions found

Categories

Other Questions