y/2+2=-7 - solution

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Solution for y/2+2=-7 equation:

y in (-oo:+oo)

y/2+2 = -7 // + 7

y/2+2+7 = 0

1/2*y+9 = 0 // - 9

1/2*y = -9 // : 1/2

y = -9/1/2

y = -18

y = -18

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