Question

Solve the system using substitution. Put your answer in ordered pair from, (x,y).
{x+y=15
{4x+3y+38

Answer 1

I'm not quite sure how to solve this.

Answer 2

can you rearrange the first equation so we find x in terms of y (like x=...)

Answer 3

How do I rearrange it?

Answer 4

x=y+15?

Answer 5

yes, nice. now substitute that x value into the second equation.

Answer 6

then you are only left with one variable.