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3 years ago

Alex’s paycheck for the last two weeks totaled $239.64. He owes the cell phone company $45.87. How much money does he have left?

Mathematics

1 answer:

enyata [817]3 years ago

4 0

239.64-45.87=193.77 the answer is $193.77

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$x-\left(2x-\dfrac{3x-4}{7}\right)=\dfrac{4x-27}{3}-3$

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Let all terms on the left side have the same denominator of 7:

$\implies \dfrac{7x}{7}-\dfrac{14x}{7}+\dfrac{3x-4}{7}=\dfrac{4x-27}{3}-3$

Join the terms on the left side:

$\implies \dfrac{7x-14x+3x-4}{7}=\dfrac{4x-27}{3}-3$

$\implies \dfrac{-4x-4}{7}=\dfrac{4x-27}{3}-3$

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$\implies \dfrac{-4x-4}{7}=\dfrac{4x-27}{3}-\dfrac{9}{3}$

Join the terms on the right side:

$\implies \dfrac{-4x-4}{7}=\dfrac{4x-27-9}{3}$

$\implies \dfrac{-4x-4}{7}=\dfrac{4x-36}{3}$

Cross multiply:

$\implies 3(-4x-4)=7(4x-36)$

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$\implies -12x-12=28x-252$

Add 12x to both sides:

$\implies -12=40x-252$

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$\implies 240=40x$

Divide both sides by 40:

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1 year ago