Question

linear equations w/ distribution (lev 1)
score: 0/5 penalty: 0.25 off
question
solve.
3(2z - 10) = 30

Explanation:

Step1: Distribute the 3

$3\times2z-3\times10 = 30$
$6z - 30=30$

Step2: Add 30 to both sides

$6z-30 + 30=30 + 30$
$6z=60$

Step3: Divide both sides by 6

$\frac{6z}{6}=\frac{60}{6}$
$z = 10$

Answer:

$z = 10$