Solve for x
x=72
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60\left(23.4-15\right)+x\times 15=22x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 60x, the least common multiple of x,60,30.
60\times 8.4+x\times 15=22x
Subtract 15 from 23.4 to get 8.4.
504+x\times 15=22x
Multiply 60 and 8.4 to get 504.
504+x\times 15-22x=0
Subtract 22x from both sides.
504-7x=0
Combine x\times 15 and -22x to get -7x.
-7x=-504
Subtract 504 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-504}{-7}
Divide both sides by -7.
x=72
Divide -504 by -7 to get 72.
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