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Rashid [163]
3 years ago
15

What is x

4x + - 6x" alt=" - 20 = - 4x + - 6x" align="absmiddle" class="latex-formula">
Mathematics
2 answers:
sergij07 [2.7K]3 years ago
8 0

Answer:

x=2

Step-by-step explanation:

- 20 =  - 4x +  - 6x

Combine like terms

-20 = -10x

Divide each side by -10

-20/-10 = -10x/-10

2 = x

seropon [69]3 years ago
4 0

Answer:

x=2

Step-by-step explanation:

Solve for x:

-20 = -10 x

-20 = -10 x is equivalent to -10 x = -20:

-10 x = -20

Divide both sides of -10 x = -20 by -10:

(-10 x)/(-10) = (-20)/(-10)

(-10)/(-10) = 1:

x = (-20)/(-10)

The gcd of -20 and -10 is -10, so (-20)/(-10) = (-10×2)/(-10×1) = (-10)/(-10)×2 = 2:

Answer:  x = 2

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If (a+b+c) = 5 and ab+bc+ac = 10. Prove that a3+b3+c3 -3abc = -25​
maks197457 [2]

Answer:

see explanation

Step-by-step explanation:

Using the identity

(a + b + c)³ = a³ + b³ + c³ + 3 [ (a + b + c)(ab + bc + ac) - abc ], then

5³ = a³ + b³ + c³ + 3(5 × 10) - 3abc, that is

125 = a³ + b³ + c³ + 150 - 3abc, hence

a³ + b³ + c³ - 3abc = 125 - 150 = - 25

3 0
3 years ago
Jill drove her car for 7 days across the country. She travelled 525 miles. If she continues this pace, how many miles will she h
ArbitrLikvidat [17]

Answer:

900 miles

Step-by-step explanation:

In 7 days she travels 525 miles.

So, in 1 day she travels: 525 ÷ 7 = 75miles

In 12 days she will have driven : 75 × 12 = <em>9</em><em>0</em><em>0</em><em> </em><em>m</em><em>i</em><em>l</em><em>e</em><em>s</em><em> </em>

8 0
2 years ago
Read 2 more answers
The dot plots show the time it takes to get to school for ten sixth graders
Lynna [10]

Answer:

huh

Step-by-step explanation:

6 0
3 years ago
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a woodworker wants to cut a board that is 6.432 feet long into 4 equal-length pieces. How long will each of the cut boards be?
ValentinkaMS [17]

Answer:

I think it's 1.608

Step-by-step explanation:

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3 0
3 years ago
7 points!
Travka [436]
It is the plus minus sign. It means to do the addition and subtraction.

Examples:

10 <span>± 7 = 17 and 3

15 </span><span>± 5 = 20 and 10

100 </span><span>± 90 = 190 and 10

It is generally used to indicate a possibility of two outcomes. A negative or positive outcome.</span>
6 0
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