Question

Given the following formula, solve for a.

8 = a+b+c
O A.
a
OB. a
OC. a = s- bzc
OD.
28 b + c
-
28 b - c
-
a = s - btc
2

Answer 1

a = -b - c + 8

Explanation:

8 = a + b + c. Solve for a.

Subtract b from both sides

8 - b = a + c

Subtract c from both sides

8 - b - c = a

It is customary to rearrange so that the variable we solved for is on the left side

a = -b - c + 8