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Travka [436]
3 years ago
12

X-3 (2x-7)=76 what is x

Mathematics
1 answer:
liq [111]3 years ago
5 0
     x - 3(2x - 7) = 76
x - 3(2x) - 3(-7) = 76
       x - 6x + 21 = 76
            -5x + 21 = 76
            <u>       - 21  - 21</u>
                    <u>-5x</u> = <u>55</u>
                     -5     -5
                       x = -11
<u />
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I do not remember how to do this please help!
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4 0
4 years ago
Lisa has $150 at most to spend on clothes. She wants to buy a pair of jeans for $58 and will spend the rest on t-shirts that cos
anzhelika [568]

Answer:

14t + 58 ≤ 150

Step-by-step explanation:

If she cannot spend more than what she has, which is 150, the inequality sign has to be "less than or equal to".  It's ok if she spends less than 150, but not ok if she spends more, because she doesn't have it to spend.

We know the cost of 1 pair of jeans is 58.  Now she wants to make up the difference by getting as many $14 shirts as possible (the number of shirts being our unknown).  

That means that the cost of the jeans PLUS the unknown number of shirts cannot exceed 150.

Therefore, the inequality is:

14t + 58 ≤ 150

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3 years ago
Rewrite the equation below in standard form 2/3 x = - 5/2 y + 2
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Standard form: Ax + By = C


So

2/3 x = - 5/2 y + 2

in standard form:

2/3 x + 5/2 y = 2


Hope it helps

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