7-2a+4a=11

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Solution for 7-2a+4a=11 equation: 


a in (-oo:+oo)

4*a-(2*a)+7 = 11 // - 11

4*a-(2*a)-11+7 = 0

4*a-2*a-11+7 = 0

2*a-4 = 0 // + 4

2*a = 4 // : 2

a = 4/2

a = 2

a = 2

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