Question

Rearrange the equation a=(1)/(2)(b-c) to make b the subject.

Answer 1

b = 2a + c

Explanation:

a =
`(1)/(2)`(b - c) ← multiply both sides by 2 to clear the fraction

2a = 2 ×
`(1)/(2)` ( b - c)

2a = b - c ( isolate b by adding c to both sides )

2a + c = b - c - c , that is

2a + c = b