4a+7=13+2a

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Solution for 4a+7=13+2a equation: 


a in (-oo:+oo)

4*a+7 = 2*a+13 // - 2*a+13

4*a-(2*a)-13+7 = 0

4*a-2*a-13+7 = 0

2*a-6 = 0 // + 6

2*a = 6 // : 2

a = 6/2

a = 3

a = 3

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