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Lady_Fox [76]
3 years ago
13

Solve : 5(x + 2) = 3x + 5

Mathematics
2 answers:
Oliga [24]3 years ago
5 0

Answer:

x = -2.5

Step-by-step explanation:

5(x+2) = 3x +5

Distribute the 5 on the left side

5x + 10 = 3x + 5

Subtract 3x from both sides

2x + 10 = 5

Subtract 10 from both sides

2x = -5

Divide by 2, in order to isolate x

x = -2.5

chubhunter [2.5K]3 years ago
3 0

Distribute (multiply): 5x + 10 = 3x + 5; subtract 5 from both sides

5x + 5 = 3x; subtract 5x from both sides

5 = -2x; divide both sides by -2

-2.5 = x

Substitute to make sure it's right. 5(-2.5 + 2) = 3(-2.5) + 5

5(-0.5) = -7.5 + 5

-2.5 = -2.5

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If AB=BC,AB=4=4x-2,andBC=3x+3,fine the length of AB
laila [671]

Answer:

18

Step-by-step explanation:

First, I'm assuming AB=4=4x-2 was a typo and it's supposed to be AB = 4x - 2

AB=BC

AB = 4x - 2 BC = 3x + 3

4x - 2 = 3x + 3

Solve for x Add 2 to each side

4x - 2 = 3x + 3

4x - 2 + 2 = 3x + 3 + 2

4x = 3x + 5 Subtract 3x from each side.

4x - 3x = 3x- 3x + 5

4x - 3x = 5

x = 5

Now plug back in to the original equations

AB = 4x - 2                  BC = 3x + 3

AB = 4 (5) - 2               BC = 3(5) + 3

AB = 20 - 2                  BC = 15 + 3

AB = 18                        BC = 18

So AB is 18

3 0
4 years ago
What 2 numbers that are the same multiply to be 36 and add up to be 15?
marysya [2.9K]
The only way to have two numbers that are the same and add up to be 15
is if they're both 7.5 , but those don't multiply to be 36.  So I guess there's
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8 0
4 years ago
Please help me, and I will mark you as brainliest
Lostsunrise [7]

Answer:

what is the equation that u actually looking for?

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Brainliest for best answer
-BARSIC- [3]

Answer:

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Step-by-step explanation:

Take 2 points from the graph where the line is. Point 1: (1 , 6). Point 2: (9 , 1).

We are going to use the formula for finding the slope of a line now.

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Slope = -5/8

7 0
2 years ago
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sasho [114]
Answer:  [C]:  "<span> 8x</span>⁷<span> + 3x</span>⁶<span> + x</span>⁵<span> + 5x</span>⁴<span> − 2x</span>³<span> </span>" .
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6 0
3 years ago
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