-31=-x-2x-4 - solution

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Solution for -31=-x-2x-4 equation:

x in (-oo:+oo)

-31 = -x-(2*x)-4 // + -x-(2*x)-4

x+2*x-31+4 = 0

3*x-27 = 0 // + 27

3*x = 27 // : 3

x = 27/3

x = 9

x = 9

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