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daser333 [38]
3 years ago
8

2x - 1 = 7 solved using algebra steps

Mathematics
1 answer:
prisoha [69]3 years ago
3 0
First add like terms in this case 1+7=8. Then then divide. 2x/8= 4. X=4
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The length of a rectangle is 3 meters more then the width the perimeter of ractangle is 26 meters
Fudgin [204]

Answer:

Step-by-step explanation:

Let's say the width is x. If the length is 3 meters more than the width, the the length is x+3.

A rectangle has 4 sides. 2 widths and 2 lengths. If the perimeter is 26 meters, you can plug in your expressions for the width and the length to solve for x.

2(x+3) +2(x)=26

2x+6+2x=26

4x+6=26

4x=20

x=5.

If x=5, that means that your with is 5 meters, and your length is 8 meters (5+3)

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How many solutions does this system have? y=3/4x-5 -3x+4y=-20?
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4 years ago
Identify the constant term in this expression 28m + 4n - 12m +3 =
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8 0
2 years ago
Three students out of a group of 10 seniors will be chosen to speak in front of the school. What is the probability that Ben, Ma
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Can anyone help me with the odd numbers on my algebra 1 homework?
WINSTONCH [101]

y =x+10

y =6x+30

substitute x+10 into the 2nd equation anywhere you see y

x+10 = 6x+30

subtract x from each side

x-x+10 = 6x-x+30

10 = 5x+30

subtract 30 from each side

10-30=5x+30-30

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divide by 5 on each side

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-4=x

now solve for y

y=x+10

y = -4 +10

y=6

Answer: x=-4

y=6

or (-4,6)


3.  y = -3x-6

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6x+5(-3x-6) =-30

5x-15x-30=-30

-20x-30=-30

-20x=0

x=0

y = -3x-6

y=-6



6 0
3 years ago
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