Answer:
Explanation:
We have a system with the value of y given in one equation as 3x-5. If y=3x-5 then we can sub that in for y in the other equation. So instead of the second equation being
6x + 3y = 15, it becomes
6x + 3(3x - 5) = 15
Solving for x:
6x + 9x - 15 = 15 and
15x = 30 so
x = 2