Answer:
(15, 11)
Step-by-step explanation:
(I'm assuming you are solving for x and y.)
Plug in the x equation:
4(2y - 7) + y = 71
8y - 28 + y = 71
9y - 28 = 71
9y = 99
y = 11
Then plug that answer into the other equation:
x = 2(11) - 7
x = 22 - 7
x = 15
You can check by doing the following to make sure you are right:
15 = 2(11) - 7
15 = 22 - 7
15 = 15
4(15) + 11 = 71
60 + 11 = 71
71 = 71
