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x-4+3\left(2x+8\right)=48+24x-42
Multiply both sides of the equation by 6, the least common multiple of 6,2.
x-4+6x+24=48+24x-42
Use the distributive property to multiply 3 by 2x+8.
7x-4+24=48+24x-42
Combine x and 6x to get 7x.
7x+20=48+24x-42
Add -4 and 24 to get 20.
7x+20=6+24x
Subtract 42 from 48 to get 6.
7x+20-24x=6
Subtract 24x from both sides.
-17x+20=6
Combine 7x and -24x to get -17x.
-17x=6-20
Subtract 20 from both sides.
-17x=-14
Subtract 20 from 6 to get -14.
x=\frac{-14}{-17}
Divide both sides by -17.
x=\frac{14}{17}
Fraction \frac{-14}{-17} can be simplified to \frac{14}{17} by removing the negative sign from both the numerator and the denominator.