Question

Which step should be taken to isolate the variable in the following equation? 7d = 49 A. Add 7 to both sides of the equation

B. Subtract 7 from both sides of the equation

C. Multiply both sides of the equation by 7.

D. Divide both sides of the equation by 7.

Answer 1

D. Divide both sides of the equation by 7.

Explanation:

Note the equation and where the variable is. To solve the variable, you must isolate it. Divide 7 from both sides:

(7d)/7 = (49)/7

d = 49/7

d = 7

d = 7 is your answer.

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