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2.9*(x-4) = (1/4)*x-5 // - (1/4)*x-5
2.9*(x-4)-((1/4)*x)+5 = 0
2.9*(x-4)+(-1/4)*x+5 = 0
2.9*(x-4)-x/4+5 = 0
(2.9*4*(x-4))/4-x/4+(4*5)/4 = 0
2.9*4*(x-4)-x+4*5 = 0
10.6*x-46.4+20 = 0
10.6*x-26.4 = 0
(10.6*x-26.4)/4 = 0
(10.6*x-26.4)/4 = 0 // * 4
10.6*x-26.4 = 0
10.6*x-26.4 = 0 // + 26.4
10.6*x = 26.4 // : 10.6
x = 26.4/10.6
x = 2.49056604
x = 2.49056604
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