Question

Solve q = r/2 (s + t) for t

A. t = qr/2 - s
B. t = 2q - s/ r
C. t = 2q/r - s
D. t = q/2r - s

Answer 1

c.

Explanation:

Multiplying by a reciprocal turns an unknown fraction into 1.

q=r/2 (s+t)

(2/r)q= s+t

2q/r -s=t