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(1/2)*x = 5-(3/4) // - 5-(3/4)
(1/2)*x+3/4-5 = 0
1/2*x-17/4 = 0 // + 17/4
1/2*x = 17/4 // : 1/2
x = 17/4/1/2
x = 17/2
x = 17/2
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