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Korolek [52]
3 years ago
5

6x-2(-3x-5)=154 What the answer

Mathematics
1 answer:
Fofino [41]3 years ago
7 0

Answer:

x = 12

Step-by-step explanation:

Simplifying

6x + -2(-3x + -5) = 154

Reorder the terms:

6x + -2(-5 + -3x) = 154

6x + (-5 * -2 + -3x * -2) = 154

6x + (10 + 6x) = 154

Reorder the terms:

10 + 6x + 6x = 154

Combine like terms: 6x + 6x = 12x

10 + 12x = 154

Solving

10 + 12x = 154

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-10' to each side of the equation.

10 + -10 + 12x = 154 + -10

Combine like terms: 10 + -10 = 0

0 + 12x = 154 + -10

12x = 154 + -10

Combine like terms: 154 + -10 = 144

12x = 144

Divide each side by '12'.

x = 12

Simplifying

x = 12

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3 years ago
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3000 exercise books are arranged into 3 piles. The first pile has 10 more books than the second pile. The number of books in the
pochemuha

Answer:

598 books

Step-by-step explanation:

Let x be the number of books in the 3rd pile. We will have then:

1st pile: 2x + 10

2nd pile: 2x

3rd pile: x

3000 = (2x + 10) + (2x) + (x)

3000 = 5x + 10

3000 - 10 = 5x

2990 = 5x

2990/5 = x

x = 598 books in the third pile!

We can check that:

3000 = 2*598 + 10 + 2*598 + 598

3000 = 1196 + 10 + 1196 + 598

3000 = 3000 CHECK!

7 0
2 years ago
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Hello,

Answer C

center (0,0)
b=3
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x²/58+y²/9=1

6 0
2 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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heba ate 1/12 of a box of cereal now the box is 3/4 full what fraction of a full box was there before heba ate it
abruzzese [7]

Now box is 3/4 full


3/4 = 3/4*1


3/4 = 3/4 * 3/3 = 9/12


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Initial fraction will be 9/12+1/12


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3 years ago
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