Answer:
x = 390 and y = 50 (390, 50)
Step-by-step explanation:
x - 12y = -210
x - 6y = 90
Solve for x in the first equation.
x = -210 + 12y
Replace x with -210 + 12y in the second equation.
-210 + 12y - 6y = 90
Solve for y.
-210 + 12y - 6y = 90
12y - 6y = 300
6y = 300
y = 50
Replace y with 50 in the first equation.
x - 12y = -210
x - 12(50) = -210
x - 600 = -210
x = 390
Replace x with 390 and y with 50 in the second equation to check your work.
x - 6y = 90
390 - 6(50) = 90
390 - 300 = 90
90 = 90
:)