Question

solve the equation: -1 - 9 = -4z, then (\frac{-1 - 9}{-4}=z), (\frac{-10}{-4}=z). also, there are some action choices like combine like terms, perform multiplication, rewrite fractions, distribute, rewrite division as multiplication, rewrite signs, and equation transformations like add to both sides, factor to both sides, multiply both sides, divide both sides.

Explanation:

Step1: Combine like terms in numerator

$-1 - 9 = -10$, so $\frac{-10}{-4}=z$

Step2: Simplify the fraction

$\frac{-10}{-4} = \frac{10}{4} = \frac{5}{2}$

Answer:

$z=\frac{5}{2}$ or $z=2.5$