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(1.4*4.6)/2.3 = (7.7*x)/0.2 // - (7.7*x)/0.2
(1.4*4.6)/2.3-((7.7*x)/0.2) = 0
(1.4*4.6)/2.3-38.5*x = 0
2.8-38.5*x = 0 // - 2.8
-38.5*x = -2.8 // : -38.5
x = -2.8/(-38.5)
x = 0.07272727
x = 0.07272727
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