Question

What is the answer to: y=-2x-5,4x+3y=15 using substitution to solve it..??

Answer 1

Explanation:

Plug the first equation into the second

`4x+3(-2x-5)=15\\4x-6x-15=15\\-2x=30\\x=-15`

y=-2(-15)-5

=30-5

=25