Question

solving equations skills practice
assignment overview 4
score: 1/3 penalty: 1 off
linear equations w/ distribution (lev 1)
question
solve.
2(5z + 9) = 48
answer
attempt 1 out of 2
z = submit answer

Explanation:

Step1: Dividir ambos lados por 2

$$\frac{2(5z + 9)}{2}=\frac{48}{2}$$
$$5z + 9 = 24$$

Step2: Restar 9 de ambos lados

$$5z+9 - 9=24 - 9$$
$$5z = 15$$

Step3: Dividir ambos lados por 5

$$\frac{5z}{5}=\frac{15}{5}$$
$$z = 3$$

Answer:

$z = 3$