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Chapter 2: Q16. (page 100)

Solve each equation. Check your solution.

8=4r+4

Short Answer

Expert verified

The solution of the given equation is r=鈭�2.

Step by step solution

01

Step 1. Write the given equation.

The given equation is 鈥�8=4r+4鈥�.

02

Step 2. Solve the given equation.

Solving,

8=4r+4 (Given equation)

84=4r+44 (Divide both sides by 4)

2=r+4 (Simplify)

2鈭�4=r+4鈭�4 (Subtract 4 from both sides)

鈭�2=r (Simplify)

r=鈭�2 (Write the variable on the left-hand side)

So, r=鈭�2is the solution of the given equation.

03

Step 3. Check the obtained solution.

Put r=鈭�2in the given equation 8=4r+4to get,

8=4鈭�2+48=428=8

Since the value obtained on the left-hand side and right-hand side are equal, the obtained value is indeed a solution of the given equation.

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Most popular questions from this chapter

Solve each equation. Check your solution.

8=16+8n

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Translate each sentence into an equation.

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Translate the following equation into a sentence:

7m鈭�q=23

Solve each equation. Check your solution.

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