Question

Make X the subject of the formula
y=mx-c

Answer 1

`x = \frac{y + c}m`

Explanation:

`y = mx - c \text{ // Add c}\\y + c = mx - c + c\\\to y + c = mx \text{ // Divide by m}\\\\\frac{y + c}m = \frac{mx}m\\\\\to \frac{y + c}m = x`