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(1/4)*(2*x-3) = 7 // - 7
(1/4)*(2*x-3)-7 = 0
1/4*(2*x-3)-7 = 0
1/4*(2*x-3)-7 = 0
1/2*x-31/4 = 0
1/2*x-31/4 = 0
1/2*x-31/4 = 0 // + 31/4
1/2*x = 31/4 // : 1/2
x = 31/4/1/2
x = 31/2
x = 31/2
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