The correct options are:
35x + 15 = 155
35x = 155 - 15
It will take 4 months to pay off the debt.
"It is a mathematical statement which consists of equal symbol between two algebraic expressions."
For given question,
Farrah borrowed $155 from her brother.
She has already paid back $15.
She plans to pay back $35 each month until the debt is paid off.
Let 'x' be the number of months taken to pay off the debt.
So, we get an equation,
35x + 15 = 155
We solve above equation to find the number of months.
⇒ 35x + 15 = 155
⇒ 35x = 155 - 15
⇒ 35x = 140
⇒ x = 4
This means, it will take 4 months to pay off the debt.
Therefore, the correct options are:
35x + 15 = 155
35x = 155 - 15
It will take 4 months to pay off the debt.
Learn more about an equation here:
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