2a+7+4a=31

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Solution for 2a+7+4a=31 equation: 


a in (-oo:+oo)

2*a+4*a+7 = 31 // - 31

2*a+4*a-31+7 = 0

6*a-24 = 0 // + 24

6*a = 24 // : 6

a = 24/6

a = 4

a = 4

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