Question

In the formula, X+a = (X+b)/c, make X the subject

Answer 1

Answer:

$\red{ \boxed{ X= \frac{b - ac}{c - 1} }}$

Step-by-step explanation:

$X+a = \frac{X+b}{c} \\ \\ \implies \: c(X+a) = X+b\\ \\ \implies \: cX+ac= X+b \\ \\ \implies \: cX - X = b - ac \\ \\ \implies \: X(c - 1) = b - ac \\ \\ \implies \: \huge \purple{ \boxed{ X= \frac{b - ac}{c - 1} }}$