Solve for x
x=-21
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x\times 2=\left(x+7\right)\times 3
Variable x cannot be equal to any of the values -7,0 since division by zero is not defined. Multiply both sides of the equation by x\left(x+7\right), the least common multiple of x+7,x.
x\times 2=3x+21
Use the distributive property to multiply x+7 by 3.
x\times 2-3x=21
Subtract 3x from both sides.
-x=21
Combine x\times 2 and -3x to get -x.
x=-21
Multiply both sides by -1.
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