-45-(-30)=x/7

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Solution for -45-(-30)=x/7 equation: 


x in (-oo:+oo)

30-45 = x/7 // - x/7

30-(x/7)-45 = 0

-1/7*x-15 = 0 // + 15

-1/7*x = 15 // : -1/7

x = 15/(-1/7)

x = -105

x = -105

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