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(1/7)*x-6*x+5/7 = -3/4 // + -3/4
(1/7)*x-6*x+5/7-(-3/4) = 0
(1/7)*x-6*x+5/7+3/4 = 0
41/28-41/7*x = 0 // - 41/28
-41/7*x = -41/28 // : -41/7
x = -41/28/(-41/7)
x = 1/4
x = 1/4
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