Loading…
Example 8.34 from Prealgebra, 8.3 Solve Equations with Variables and Constants on Both Sides
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.
| Distribute. | |
| Combine like terms. | |
| Subtract to get all the variables on the right since . | |
| Simplify. | |
| Subtract 9 to get the constants on the left. | |
| Simplify. | |
| Divide by 5. | |
| Simplify. | |
| Check: Substitute: . | |
The book's Try It right after this example: same idea, new numbers. Only the answer is given.
Solve:
How did it go?