Question

shopping: when shopping for clothes, jaclyn spent $30 less than 3 times what daniel spent. jaclyn spent $21. write and solve an equation to find how much daniel spent. let x represent how much daniel spent. the equation is 3x - 21 = 30.

Explanation:

Step1: Define variable and equation

Let $x$ = Daniel's spent amount.
Equation: $3x - 30 = 21$

Step2: Isolate the term with $x$

Add 30 to both sides:
$3x - 30 + 30 = 21 + 30$
$3x = 51$

Step3: Solve for $x$

Divide by 3 on both sides:
$\frac{3x}{3} = \frac{51}{3}$
$x = 17$

Answer:

Daniel spent $\$17$.