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(2/3)*(4/5-(3*x)) = -7/9 // + -7/9
(2/3)*(4/5-(3*x))-(-7/9) = 0
(2/3)*(4/5-3*x)+7/9 = 0
2/3*(4/5-3*x)+7/9 = 0
(2/3*9*(4/5-3*x))/9+7/9 = 0
2/3*9*(4/5-3*x)+7 = 0
59/5-18*x = 0
(59/5-18*x)/9 = 0
(59/5-18*x)/9 = 0 // * 9
59/5-18*x = 0
59/5-18*x = 0 // - 59/5
-18*x = -59/5 // : -18
x = -59/5/(-18)
x = 59/90
x = 59/90
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