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-(3*((7/5)*x-3))-4*x = 6 // - 6
-(3*((7/5)*x-3))-4*x-6 = 0
-3*((7/5)*x-3)-4*x-6 = 0
-3*(7/5*x-3)-4*x-6 = 0
-3*(7/5*x-3)-4*x-6 = 0
9-41/5*x-6 = 0
3-41/5*x = 0
3-41/5*x = 0
3-41/5*x = 0 // - 3
-41/5*x = -3 // : -41/5
x = -3/(-41/5)
x = 15/41
x = 15/41
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