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Viktor [21]
2 years ago
10

Which equation is equivalent to 3[x + 3(4x – 5)] = 15x – 24?

Mathematics
1 answer:
NikAS [45]2 years ago
8 0
3[x + 3(4x - 5)] = 15x - 24
3(x + 12x - 15) = 15x - 24
3(13x - 15) = 15x - 24
39x - 45 = 15x - 24    |add 45 to both sides
39x = 15x + 21      |subtract 15x from both sides
24x = 21      |divide both sides by 24
x = 21/24
x = 7/8
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The number of paychecks Jalen will have to save until he can purchase the laptop is 6

<h3>How many paychecks will Jalen have to save until he can purchase the laptop? </h3>

<u>Define your variable</u>

To do this, we use the following variables

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<u>Set up an equation, and solve it.</u>

In (a), we have:

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Using the above variables, the equation is:

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