-3=-5a+3a+7

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


a in (-oo:+oo)

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

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

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

2*a-10 = 0 // + 10

2*a = 10 // : 2

a = 10/2

a = 5

a = 5

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