4(2x+10)= 0
8x+40=0
subtract 40 from both sides
8x+40-40=0-40
8x=-40
x=-40/8
x=-5

4(2x-10)=0
8x-40=0
Add 40 from both sides
8x-40+40=0+40
8x=40
x=40/8
x=5

4 0

2 years ago

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A 12 foot rope is cut into two pieces so that one piece is 3 feet less than twice the length of the other piece. how long is eac

olga2289 [7]

12 feet long

1st piece = x

2nd piece = 2x-3

3x-3 =12

3x=15

x = 5

1st piece = 5 feet

2nd piece = 2*5=10-3=7 feet

4 0

2 years ago

Graph the system of equations. Then determine whether it has no solution, one

Nikitich [7]

Answer:

One solution: (6, -1)

Step-by-step explanation:

I have attached the work to your problem below.

Please see the attachment.

I hope this helps.

7 0

3 years ago

What is the value of the expression 6+39÷3

scoray [572]

Answer:

Step-by-step explanation:

My teacher explained it to me.

6 0

3 years ago

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