Question 316676
Solve one of the equations for y and then plug the value you found for y into the other equation to find the value of x.

8x + 5y = 5

5y = -8x + 5

y = (-8x/5) + 5/5

y = (-8x/5) + 1

We plug (-8x/5) + 1 for y in the other equation and solve for x.


3x + 3y = 9

3x + 3(-8x/5) + 1) = 9

3x - (24x/5) + 3 = 9

15x - 24x + 15 = 45

-9x = 45 - 15

-9x = 30

x = 30/-9

x = -30/9

x = -10/3

Done!