Solve the system by substitution.

Question

x, equals, minus, y
x=
−y
8, x, plus, 3, y, equals, 40
8x+3y=
40

Answer 1

Since x = -y, we can substitute this into the second equation:

8(-y) + 3y = 40
-8y + 3y = 40
-5y = 40
y = -8

Now, we can substitute y back into the equation x = -y:

x = -( -8)
x = 8

Therefore, the solution to the system of equations is x = 8 and y = -8.