-2a+6=7a+42

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Solution for -2a+6=7a+42 equation: 


a in (-oo:+oo)

6-2*a = 7*a+42 // - 7*a+42

6-2*a-(7*a)-42 = 0

6-2*a-7*a-42 = 0

-9*a-36 = 0 // + 36

-9*a = 36 // : -9

a = 36/(-9)

a = -4

a = -4

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