-1/2z+7=-3

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Solution for -1/2z+7=-3 equation: 


z in (-oo:+oo)

(-1/2)*z+7 = -3 // + 3

(-1/2)*z+3+7 = 0

10-1/2*z = 0 // - 10

-1/2*z = -10 // : -1/2

z = -10/(-1/2)

z = 20

z = 20

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