For Exercises 9–40,
a. write an equation that represents the given statement.
b. solve the problem. (See Examples 1–3.)
Three times the sum of a number and 4 results in -24. Find the number.
Reference Example 1-3. Translating Sentences to Mathematical Equations
1. A number decreased by 7 is 12. Find the number.
Translating Sentences to Mathematical Equations
2. Seven less than 3 times a number results in 11. Find the number.
Translating Sentences to Mathematical Equations
3. Add. Two times the sum of a number and 8 equals 38.
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