Answer and explanation:
X
3x + 6y = 180 Use the original expression to find x
3x = 180 - 6y Subtract 6y by both sides
[tex]\frac{3x}{3} = \frac{180}{3} - \frac{6y}{3}[/tex] Divide by 3 to get x
x = 60 - 3y
Y
x = 60 - 3y Use the new expression to find y
x - 60 = - 3y Subtract 60 by both sides
[tex]\frac{x - 60}{-3} = \frac{-3y}{-3}[/tex] Divide by -3 to get y
[tex]-\frac{x}{3} + 20 = y[/tex]
