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2\left(x+1\right)-4\left(x-4\right)=24+3
Multiply both sides of the equation by 12, the least common multiple of 6,3,4.
2x+2-4\left(x-4\right)=24+3
Use the distributive property to multiply 2 by x+1.
2x+2-4x+16=24+3
Use the distributive property to multiply -4 by x-4.
-2x+2+16=24+3
Combine 2x and -4x to get -2x.
-2x+18=24+3
Add 2 and 16 to get 18.
-2x+18=27
Add 24 and 3 to get 27.
-2x=27-18
Subtract 18 from both sides.
-2x=9
Subtract 18 from 27 to get 9.
x=\frac{9}{-2}
Divide both sides by -2.
x=-\frac{9}{2}
Fraction \frac{9}{-2} can be rewritten as -\frac{9}{2} by extracting the negative sign.