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marin [14]
4 years ago
6

How do I solve the problem by isolating x

Mathematics
2 answers:
Novosadov [1.4K]4 years ago
7 0

Answer:

10x + 8 = 3x - 6, 7x = -14

Step-by-step explanation:

10x + 8 = 3 ( x - 2 ) = 10x + 8 = 3x - 6

subtract 8 from both sides of the equation: 10x + 8 = 3x - 6

10x + 8 - 8 = 3x - 6 - 8

simplify

10x = 3x - 14

subtract 3x from both sides

10x - 3x = 3x - 14 - 3x

simplify

7x =  -14

divide both sides by 2

7x / 2 = -14 / 2

simplify

x = -2

Annette [7]4 years ago
5 0

Answer:

see below

Step-by-step explanation:

10x +8 = 3(x-2)

Distribute

10x +8 = 3x-6

Subtract 3x from each side

10x+8-3x = 3x-6-3x

7x +8 = -6

Subtract 8 from each side

7x+8-8 = -6-8

7x = -14

Divide each side by 7

7x/7 = -14/7

x = -2

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Factor x3 + x2 + x + 1 by grouping. What is the resulting expression? (x2)(x + 1) (x2 + 1)(x) (x2 + 1)(x + 1) (x3 + 1)(x + 1)
yanalaym [24]

Answer :(x^2 + 1)( x + 1)

Factor x^3 + x^2 + x + 1 by grouping

We group first two terms and last two terms

(x^3 + x^2)+( x + 1)

Now we take out GCF from each group

GCF of (x^3 + x^2) is x^2

GCF of +( x + 1) is 1

(x^3 + x^2) +( x + 1)

x^2(x + 1) +1( x + 1)

Now we factor out x+1 that is in common

(x^2 + 1)( x + 1)


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The <em><u>correct answer</u></em> is:

A) 300-70h = 30

Explanation:

The variable h represents the number of hours.  

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300-70h gives us the difference between the total distance between the cities and the distance the bus has traveled.  Since the bus is 30 km from Orlando, there will be 30 km left; this gives us 300-70h = 30.

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The answer is letter A.
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Answer:

it's B

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