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Example 2.55 from Elementary Algebra, 2.5 Solve Equations with Fractions or Decimals
Solve: .
Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.
| Multiply by the LCD, 4. | ||
| Distribute. | ||
| Simplify. | ||
| Collect the variables to the left. | ||
| Simplify. | ||
| Collect the constants to the right. | ||
| Simplify. | ||
| Divide by 5. | ||
| Simplify. | ||
| Check: | ||
| Let . | ||
| Finish the check on your own. | ||
The book's Try It right after this example: same idea, new numbers. Only the answer is given.
Solve: .
How did it go?