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-12x-3\left(4+1\right)=2\left(2\times 6+5\right)
Multiply both sides of the equation by 12, the least common multiple of 4,6.
-12x-3\times 5=2\left(2\times 6+5\right)
Add 4 and 1 to get 5.
-12x-15=2\left(2\times 6+5\right)
Multiply -3 and 5 to get -15.
-12x-15=2\left(12+5\right)
Multiply 2 and 6 to get 12.
-12x-15=2\times 17
Add 12 and 5 to get 17.
-12x-15=34
Multiply 2 and 17 to get 34.
-12x=34+15
Add 15 to both sides.
-12x=49
Add 34 and 15 to get 49.
x=\frac{49}{-12}
Divide both sides by -12.
x=-\frac{49}{12}
Fraction \frac{49}{-12} can be rewritten as -\frac{49}{12} by extracting the negative sign.