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Fiesta28 [93]
3 years ago
15

4(2x - 5) + 15 = 11 Write the steps you will use to solve the equation and explain each step.

Mathematics
2 answers:
vagabundo [1.1K]3 years ago
6 0
First, multiply 4*2x-4*-5= 8x-20.
Second, add 15 to 8x-20
Third, that would equal 8x-20+15=11 
Fourth, 15+-20= -5 
Fifth, 8x-5=11
Sixth, add +5 to -5 and +5 to 11= 8x=16 
Last, do 8x/8x and 16/8x 
The answer is x=2
amid [387]3 years ago
3 0
8x-20+15=11
8x+15=11+20
8x+15=31
8x=31-15
8x=16
X=2

First, add 20 to both sides
Simplify
Subtract 15 from both sides
Simplify
Divide 8 from both sides
Simplify
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Answer is in the attachment.

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To graph x>2 consider first x=2. x=2 is a vertical line and if you want to graph x>2 you need to shade to the right of the vertical line.

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I have a graph in the picture that shows the solution.

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Just in case my one graph was confusing, I put a second attachment with just the solution to the system.

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