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poizon [28]
3 years ago
9

Calculeaza ținând cont de legătură dintre adunare și scadere​

Mathematics
1 answer:
Lelu [443]3 years ago
7 0

Answer:

The explanation is given below:

Step-by-step explanation:

The computation is shown below:

If we add 7 and 2 then it provides 9 and then subtract 2 from 9 it provides 7 and then subtract 7 from 9 it provides 2 and like this way it follows for others two

7 + 2 = 9

9 - 2 = 7  

9 - 7 = 2

8 - 3 = 5  

5 + 3 = 8

8 - 5 = 3

3 + 7 = 10  

10 - 7 = 3  

10 - 3 = 7

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Solve the following inequality: -20 &lt; 4 - 2x<br> A. 8 &gt;x<br> B. 8 C. 12 &gt; x<br> D. 12
Mama L [17]

Answer:

-20 < 4 - 2x (subtract 4 from both sides)

-24 < -2x (divide each side by -2)

12> x  (when you divide by a negative number, the inequality flips)

x< 12 ( I always put it so x is first)

so the answer is C

6 0
3 years ago
Define the variable plz ASAP!!!!
Ksivusya [100]
There are 20 questions on the quiz.
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Suppose you have 8 coins and you have at least one each of a quarter, a dime, and a penny. What is the least amount of money you
Black_prince [1.1K]

41 cents one quarter one dime six pennies

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3 years ago
The length of a rectangle is 8 m more than 6 times the width. The perimeter is 156 m. Find width.
Alla [95]
<span>width = x
</span><span>length = 6x + 8 

x + 6x + 8 = 156/2
7x + 8 = 78
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5 0
4 years ago
Worth 20 points, first answer gets brainliest!
user100 [1]

Answer:

x = -7

Step-by-step explanation:

Simplifying

5x + 130 = 8x + 151

Reorder the terms:

130 + 5x = 8x + 151

Reorder the terms:

130 + 5x = 151 + 8x

Solving

130 + 5x = 151 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.

130 + 5x + -8x = 151 + 8x + -8x

Combine like terms: 5x + -8x = -3x

130 + -3x = 151 + 8x + -8x

Combine like terms: 8x + -8x = 0

130 + -3x = 151 + 0

130 + -3x = 151

Add '-130' to each side of the equation.

130 + -130 + -3x = 151 + -130

Combine like terms: 130 + -130 = 0

0 + -3x = 151 + -130

-3x = 151 + -130

Combine like terms: 151 + -130 = 21

-3x = 21

Divide each side by '-3'.

x = -7

Simplifying

5 0
3 years ago
Read 2 more answers
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