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vodka [1.7K]
3 years ago
7

Simplify -2(3x+6) -4(x-5)

Mathematics
1 answer:
Mkey [24]3 years ago
3 0
-10x8

you distribute-2 through the parentheses & 4 too. Then you collect the like terms and calculate the sum.
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The length of a rectangle is 5 less than 3 times its width. The perimeter is
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Answer:

The length is 28 and the width is 11

Step-by-step explanation:

To solve this problem, we can make the width as x.

Since the length is 5 less than 3 times the width, it's going to be 3x - 5

So now we've got the length and width, just need to find the perimeter, which is all the sides added up together. They already gave us the perimeter, so we just have to solve the equation:

2(3x - 5) + 2x = 78

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x = 11

x = 11, but remember, x is the width, not the length. Since we already found what x is, we just have to plug it into the equation of:

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