# How to solve multi-step equations with fractions like 17-s/4 = -10?

Take $17$ to the right changing sign:
$- \frac{s}{4} = - 17 - 10$
$- \frac{s}{4} = - 27$
take the $4$ to the right multiplying:
$- s = - 27 \cdot 4$
$- s = - 108$
multiply both sides by $- 1$;
$s = 108$