Solve for x
x=700
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1.2x=840
Combine x\times 0.2 and x to get 1.2x.
x=\frac{840}{1.2}
Divide both sides by 1.2.
x=\frac{8400}{12}
Expand \frac{840}{1.2} by multiplying both numerator and the denominator by 10.
x=700
Divide 8400 by 12 to get 700.
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