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Alex17521 [72]
4 years ago
7

5x + 10 = 20

Mathematics
1 answer:
Andrei [34K]4 years ago
4 0

To solve for <em>x</em>, we must first isolate the term containing <em>x</em> which in this problem is 5x.

Since 10 is being added to 5x, we subtract 10 from both sides of the equation to isolate the 5x.

On the left, the +10 and -10 cancel out and on the right, 20 - 10 is 10 and we have 5x = 10.

Now we can finish things off by just dividing both sides of the equation by 5. On the left the 5's cancel and on the right, 10 divided by 5 is 2 so <em>x = 2</em>.

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Lina20 [59]
Before jumping into doing this problem, it is important to look at all the information's that have been made available in the question. Based on those given conditions the answer to the problem can be easily deduced.
Let us assume the number of friends Sumalee has = x
Then
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6 0
3 years ago
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STALIN [3.7K]

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Step-by-step explanation:

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3 years ago
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Thank you for your help.
Nonamiya [84]

Answer:

q = -15

Step-by-step explanation:

5q = -75

Divide both sides by 5 : q = -15

8 0
2 years ago
−8(−33−413−3)+(42−5)(−92−43−23)
-Dominant- [34]
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8 0
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I'm trying to pass my performance task and finish high school and I have no idea what it really is asking me to do, rather how t
ElenaW [278]

Answer:

x

8

−

256

Rewrite  

x

8

as  

(

x

4

)

2

.

(

x

4

)

2

−

256

Rewrite  

256

as  

16

2

.

(

x

4

)

2

−

16

2

Since both terms are perfect squares, factor using the difference of squares formula,  

a

2

−

b

2

=

(

a

+

b

)

(

a

−

b

)

where  

a

=

x

4

and  

b

=

16

.

(

x

4

+

16

)

(

x

4

−

16

)

Simplify.

Tap for more steps...

(

x

4

+

16

)

(

x

2

+

4

)

(

x

+

2

)

(

x

−

2

)

Step-by-step explanation:

3 0
3 years ago
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