7a-2+3a=28

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Solution for 7a-2+3a=28 equation: 


a in (-oo:+oo)

7*a+3*a-2 = 28 // - 28

7*a+3*a-28-2 = 0

10*a-30 = 0 // + 30

10*a = 30 // : 10

a = 30/10

a = 3

a = 3

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