Example

Solving 0.10d+0.05(d5)=2.150.10d + 0.05(d - 5) = 2.15 by Clearing Decimals

To solve 0.10d+0.05(d5)=2.150.10d + 0.05(d - 5) = 2.15, first distribute the 0.050.05 into the parentheses: 0.10d+0.05d0.25=2.150.10d + 0.05d - 0.25 = 2.15 Combine like terms: 0.15d0.25=2.150.15d - 0.25 = 2.15 To clear the decimals, multiply the entire equation by 100100, as the decimals extend to the hundredths place: 100(0.15d0.25)=100(2.15)100(0.15d - 0.25) = 100(2.15) Distribute the 100100: 15d25=21515d - 25 = 215 Add 2525 to both sides to isolate the variable term: 15d=24015d = 240 Divide each side by 1515 to find dd: d=16d = 16 Substituting 1616 back into the original equation evaluates to 2.15=2.152.15 = 2.15, confirming that the solution is d=16d = 16.

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Updated 2026-04-22

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