Solve for x
x=6
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2.5x=21-6
Subtract 6 from both sides.
2.5x=15
Subtract 6 from 21 to get 15.
x=\frac{15}{2.5}
Divide both sides by 2.5.
x=\frac{150}{25}
Expand \frac{15}{2.5} by multiplying both numerator and the denominator by 10.
x=6
Divide 150 by 25 to get 6.
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