Solve for x
x=9
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2\left(3x-21\right)=12
Variable x cannot be equal to 7 since division by zero is not defined. Multiply both sides of the equation by 2\left(x-7\right), the least common multiple of x-7,2x-14.
6x-42=12
Use the distributive property to multiply 2 by 3x-21.
6x=12+42
Add 42 to both sides.
6x=54
Add 12 and 42 to get 54.
x=\frac{54}{6}
Divide both sides by 6.
x=9
Divide 54 by 6 to get 9.
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