Use substitution to solve the system

5x+4y=12

Y=2x-10

Substitute the 2x-10 in for I in the first equation:

5x+4 (2x-10) = 12

Distribute the 4:

5x+8x-40=12

Add 40 to both sides and combine the x terms:

13x=52

Divide by 13:

x=4

Plug the 4 into either equation for the x value:

y=2 (4) - 10

y=8-10

y=-2

Answer:

X=4

Y=-2

To check you can plug them into either one of the equations.

Ok so do you know the steps for substitution