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faltersainse [42]
4 years ago
7

Solve fot z show all your work. 7z - 18 =2z+ 18​

Mathematics
1 answer:
Veseljchak [2.6K]4 years ago
3 0

Answer:

z = 36/5​

Step-by-step explanation:

7z - 18 =2z+ 18​

Subtract 2z from each side

7z-2z- 18 =2z-2z+ 18

5z - 18 = 18

Add 18 to each side

5z-18+18 = 18+18

5z = 36

Divide by 5

5z/5 = 36/5

z = 36/5​

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ANTONII [103]
The answer is bold 
-34(x+2)=6
x= -37/17

Steps
-34(x+2)=6
-34x-68=6
-34x=6+68
-34=74
<span>x=-37/17</span>

Alternative form is
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4 0
3 years ago
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M is the midpoint of , cm = 2x + 3, and md = 3x – 6. what is cd? answer
wlad13 [49]
<span>If M is the midpoint of CD, CM = 2x+3 and MD = 3x-6, then:

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7 0
3 years ago
A student on the cross- county team runs 30 minutes a day as a part of her training. Write an equation to describe the relations
KengaRu [80]

Answer:

The answer is below

Step-by-step explanation:

A student on the cross- county team runs 30 minutes a day as a part of her training. Write an equation to describe the relationship between the distance she runs in miles, D, and her running speed, in miles per hour, when she runs at a constant speed of 5.4miles per hour for m minutes, and then at b miles per hour for n minutes

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Answer:

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