X/2-(-10)=-20 - solution

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Solution for X/2-(-10)=-20 equation:

X in (-oo:+oo)

X/2+10 = -20 // + 20

X/2+10+20 = 0

1/2*X+30 = 0 // - 30

1/2*X = -30 // : 1/2

X = -30/1/2

X = -60

X = -60

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