Answer:
2x + 2x + x =180
x = 36 degree
Step-by-step explanation:
<span>6x-7y=-84
7y = 6x + 84
y = 6/7(x) + 12</span>
The answer would be (5, -2). This is because when you plug in the respective values in for x and y into the equation 3x - 3y = 21, you get 21, which is the desired answer.
3x - 3y = 21
3(5) - 3(-2) = 21
15 + 6 = 21
21 = 21
Hope this helped!
why?
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