45=-3a+7a+5

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Solution for 45=-3a+7a+5 equation: 


a in (-oo:+oo)

45 = 7*a-3*a+5 // - 7*a-3*a+5

45-(-3*a)-(7*a)-5 = 0

3*a-7*a-5+45 = 0

40-4*a = 0 // - 40

-4*a = -40 // : -4

a = -40/(-4)

a = 10

a = 10

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