Problem

Solve each problem. In the case, give the equation using x as the variable, and give the a...

Solve each problem. In the case, give the equation using x as the variable, and give the answer. See Example 1.

If four times a number is added to 8, the result is three times the number, added to 5. Find the number.

EXAMPLE 1 Finding the Value of an Unknown Number

The product of 4, and a number decreased by 7, is 100. What is the number?

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Solutions For Problems in Chapter 2.4

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