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Last month, Marcus borrowed $\$88$ from his roommate. So far, he has paid him back $\$34$ . Which equation could be used to find $x$ , the amount of money he still owes his roommate?

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Area of quadrilaterals and triangles: word problems

Full solution

Q. Last month, Marcus borrowed

\$88

from his roommate. So far, he has paid him back

\$34

. Which equation could be used to find

x

, the amount of money he still owes his roommate?

Identify amounts: Identify the total amount borrowed and the amount paid back so far. Marcus borrowed $\$88$ and has paid back $\$34$ .
Set up equation: Set up an equation to find the remaining amount $x$ that Marcus owes. $\newline$ The equation is: Total borrowed - Amount paid back = Amount still owed $\newline$ So, the equation will be: $\$88 - \$34 = x$
Calculate amount owed: Calculate the amount still owed by Marcus. $\newline$ $\$88 - \$34 = \$54$ $\newline$ So, Marcus still owes $\$54$ to his roommate.

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