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umka2103 [35]
3 years ago
12

How many solutions does the equation 6z - 3z - 7 = -2 + 3 have?

Mathematics
1 answer:
erik [133]3 years ago
6 0

Answer:

One

Step-by-step explanation:

6z - 3z - 7 = -2 + 3

Combine like terms

3z-7 = 1

Add 7 to each side

3z-7+7 = 1+7

3z=8

Divide each side by 3

3z/3 = 8/3

z = 8/3

There is one solution

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1.5( x + 4) -3 = 4.5 ( x - 2 )
Hitman42 [59]

Answer:

Step-by-step explanation:

1.5(x + 4) - 3 = 4.5(x - 2)

1.5x + 6 - 3 = 4.5x - 9

1.5x + 3 = 4.5x - 9

3 + 9 = 4.5x - 1.5x

12 = 3x

12/3 = x

4 = x <======

6 0
3 years ago
.<br> Simplify the expression.<br><br> (7 – c)(–1)
Ganezh [65]
For this, you use the Law of Distribution and multiply -1 by all terms in the parentheses. 7 • -1 = -7; -c • -1 = c. Then you combine them, but since c is a variable, -7 + c is the most simplified it can get. I hope this helped!
7 0
3 years ago
Write two fractions with different denominators whose LCD is 36.
mestny [16]
Two whole numbers whose least common denominator is 36 could be many different pairs: 1 and 36, 2 and 36, 3 and 36, 4 and 36, 4 and 18, 4 and 9, 6 and 36, 9 and 36, 9 and 12, 12 and 36, 12 and 18, 18 and 36, and lastly 36 and 36.

If you want fractions in simplest form, with different denominators, and with an LCD of 36, I would go with 4/5 and 9/13.

I think the reason these work is because 5, 13, and 36 are all pairwise relatively prime (meaning the LCD of any two of them is their product), and because the LCD of 4 and 9 is 36, like I said earlier.
8 0
3 years ago
Read 2 more answers
If 75% of budget is 1200, what is the full budget using a table?
Alisiya [41]

Answer: full budget of 100% will be 1600

Step-by-step explanation:

If 75% = 1200

Full budget will be 100%

Represent the question as if 75% = 1200

Then 100% = x

Cross multiply:

75%x = 1200%

Divide both sides by 75%

x = 1200%/75%

x = 16 × 100

= 1600

3 0
4 years ago
Can someone help and explain this to me?
STatiana [176]

Answer:

you find the difference of 5 1/4 and 11 1/5 so what that means is

difference = subtract

so you do 11 1/5 - 5 1/4 = 5 19/20 = 5 19/20

Step-by-step explanation:

5 0
3 years ago
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