Solve for x
x=4
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1.8x=7.2
Multiply 4.5 and 1.6 to get 7.2.
x=\frac{7.2}{1.8}
Divide both sides by 1.8.
x=\frac{72}{18}
Expand \frac{7.2}{1.8} by multiplying both numerator and the denominator by 10.
x=4
Divide 72 by 18 to get 4.
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