7+4a+3a=49

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Solution for 7+4a+3a=49 equation: 


a in (-oo:+oo)

4*a+3*a+7 = 49 // - 49

4*a+3*a-49+7 = 0

7*a-42 = 0 // + 42

7*a = 42 // : 7

a = 42/7

a = 6

a = 6

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