Answer:
x = 10 + 2.5y y = -4 - 0.4x
Step-by-step explanation
Subtract 2x from both sides.
-5y = 20 + 2x
Divide by -5 on both sides.
y = -4 - 2/5x or you can do y = -4 - 0.4x
and then to find x, add 5y to both sides of original equation.
2x - 5y = 20
2x = 20 + 5y
Divide by 2 on both sides.
x = 10 + 2.5y
