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Anonymous
3x + 7 = 3(-3) + 7= -9 + 7= -2
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3
3x + 11 = x + 3 2x = -8 x = -4
3x - 3 = 2x + 6 3x = 2x + 9 x = 9
x=-3
3x - 2 + 5 = 16 3x + 3 = 16 3x = 13 x = 13/3 ~ 4.333
one is y=3x+3 so is y=3x+5