Question

How to solve q =r/2(s+t) for t

Answer 1

`q= (r)/(2(s+t) ) \\ q= (r)/(2s+2t ) \\ q(2s+2t)=r \\ 2s+2t= (r)/(q) \\ 2t=(r)/(q) -2s \\ t= ((r)/(q) -2s)/(2) \\t= ((r)/(q))/(2)- (2s)/(2) \\ t= (r)/(2q)-s`