Solve for d. 18 = 3(d + 2) d = _____

Distribute multiplication: Step 1: Simplify the equation by distributing the multiplication across the parentheses. Calculation: 18 = 3(d + 2) becomes 18 = 3d + 6.Isolate variable: Step 2: Isolate the variable d by subtracting 6 from both sides of the equation. Calculation: 18 - 6 = 3d, which simplifies to 12 = 3d.Solve for d: Step 3: Solve for d by dividing both sides of the equation by 3. Calculation: 12 / 3 = d, so d = 4.

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Solve for $d$ . $\newline$ $18 = 3(d + 2)$ $\newline$ $d =$ _____

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Math Problems

Grade 7

Solve two-step equations with parentheses

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Q. Solve for

d

\newline

18 = 3(d + 2)

\newline

d =

_____

Distribute multiplication: Step $1$ : Simplify the equation by distributing the multiplication across the parentheses. $\newline$ Calculation: $18 = 3(d + 2)$ becomes $18 = 3d + 6$ .
Isolate variable: Step $2$ : Isolate the variable $d$ by subtracting $6$ from both sides of the equation. $\newline$ Calculation: $18 - 6 = 3d$ , which simplifies to $12 = 3d$ .
Solve for d: Step $3$ : Solve for d by dividing both sides of the equation by $3$ . $\newline$ Calculation: $\frac{12}{3} = d$ , so $d = 4$ .