Solve for z. 3(z − 13) = 15 z = _____

Distribute 3 across: Distribute the 3 across (z - 13). Calculation: 3(z - 13) = 3z - 39.Add 39 to isolate: Add 39 to both sides to isolate the term with z. Calculation: 3z - 39 + 39 = 15 + 39. Simplified: 3z = 54.Divide both sides: Divide both sides by 3 to solve for z. Calculation: 3z / 3 = 54 / 3. Simplified: z = 18.

Resources

Testimonials

Plans

Resources

Testimonials

Plans

AI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Solve for $z$ . $\newline$ $3(z - 13) = 15$ $\newline$ $z =$ _____

View step-by-step help

Home

Math Problems

Grade 7

Solve two-step equations with parentheses

Full solution

Q. Solve for

z

\newline

3(z - 13) = 15

\newline

z =

_____

Distribute $3$ across: Distribute the $3$ across $(z - 13)$ . $\newline$ Calculation: $3(z - 13) = 3z - 39$ .
Add $39$ to isolate: Add $39$ to both sides to isolate the term with $z$ . $\newline$ Calculation: $3z - 39 + 39 = 15 + 39$ . $\newline$ Simplified: $3z = 54$ .
Divide both sides: Divide both sides by $3$ to solve for $z$ . $\newline$ Calculation: $\frac{3z}{3} = \frac{54}{3}$ . $\newline$ Simplified: $z = 18$ .