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(-4*x)/3-4 = -91/3 // + -91/3
(-4*x)/3-(-91/3)-4 = 0
(-4*x)/3+91/3-4 = 0
79/3-4/3*x = 0 // - 79/3
-4/3*x = -79/3 // : -4/3
x = -79/3/(-4/3)
x = 79/4
x = 79/4
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