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Chapter 2: Q22. (page 110)

Evaluate each expression if x=鈭�4,鈥�y=7,鈥刟苍诲z=鈭�9.

3x鈭�2+2y

Short Answer

Expert verified

3x鈭�2+2y=28

Step by step solution

01

Step 1. Given information.

x=鈭�4,y=7,and z=鈭�9, and expression is:3x鈭�2+2y

02

Step 2. Description of step.

To solve the given expression:

substitute the given value of x and y in the expression, as:

3x鈭�2+2y=3鈭�4鈭�2+27=鈭�12鈭�2+14=鈭�14+14=14+14=28

Thus, 3x鈭�2+2y=28

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Most popular questions from this chapter

Solve each equation. Check your solution.

3t+7=鈭�8

Translate the following statement in if-then form:

鈥�4q+6>42 when q>9.

Write an equation with the variable on each side of the equals sign, at least one fractional coefficient, and a solution of -6. Discuss the steps you used.

Solve each equation. Check your solution. (Lesson 2-3)

9+y5=6

Translate each sentence into an equation.

Twenty-seven times k is h squared decreased by 9.
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