Answer:
Substitute x into the first equation.
Step-by-step explanation:
4(15-4y) - 5y = -2
The variable x is already by itself on one side of the equation. Therefore, x = 15 - 4y which means we can substitute 15 - 4y into the first equation.
Answer:
4(15-4y) - 5y = -2
Step-by-step explanation:
4x - 5y = -2
x = 15 - 4y:
Substitute x = 15 - 4y into the first equation:
4(15-4y) - 5y = -2
