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(1/3)*(8*x-8) = (2/5)*(8*x-3)+7 // - (2/5)*(8*x-3)+7
(1/3)*(8*x-8)-((2/5)*(8*x-3))-7 = 0
(1/3)*(8*x-8)+(-2/5)*(8*x-3)-7 = 0
1/3*(8*x-8)-2/5*(8*x-3)-7 = 0
1/3*(8*x-8)-2/5*(8*x-3)-7 = 0
-8/15*x-7-22/15 = 0
-8/15*x-127/15 = 0
-8/15*x-127/15 = 0
-8/15*x-127/15 = 0 // + 127/15
-8/15*x = 127/15 // : -8/15
x = 127/15/(-8/15)
x = -127/8
x = -127/8
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