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(1/5)*(x+4) = 2 // - 2
(1/5)*(x+4)-2 = 0
1/5*(x+4)-2 = 0
1/5*(x+4)-2 = 0
1/5*x-6/5 = 0
1/5*x-6/5 = 0
1/5*x-6/5 = 0 // + 6/5
1/5*x = 6/5 // : 1/5
x = 6/5/1/5
x = 6
x = 6
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