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4 May, 03:57

An equation is shown.

2 (a+b) = c

Solve the equation for b in terms of a and c. Explain your answer.

A. b=c-2-a; subtract both 2 and a from each side.

B. b=c-2a; distribute 2 to get 2a+b, then subtract 2a from each side.

C. b=c+2a/2; distribute 2 to get 2a+2b, add 2a, then divide by 2.

D. b = c-2a/2; distribute 2 to get 2a+2b, subtract 2a, then divide by 2.

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Answers (1)
  1. 4 May, 06:13
    0
    2 (a+b) = c

    2a + 2b = c

    2b = c - 2a

    b = (c - 2a) / a

    answer

    D. b = (c-2a) / 2; distribute 2 to get 2a+2b, subtract 2a, then divide by 2.
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