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anastassius [24]
3 years ago
6

7(h-4)=2h+17 help plzz

Mathematics
1 answer:
S_A_V [24]3 years ago
6 0
7(h-4) = 2h + 17         distribute to get:
7h - 28 = 2h + 17       subtract 2h from both sides to get:
5h - 28 = 17               add 28 to both sides to get:
5h = 45                      divide 5 from both sides to get:
h = 9
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please help me it is URGENT pls the first one is solve and the 2nd one is simplify I will give u lots of points thank you
klasskru [66]
I.) (5x+3)/4-(2x-4)/3=5
Clear fractions:
3·((5x+3)/4)=15x+9
4·((2x-4)/3)=8x-16
15x+9-(8x-16)=5
15x+9-8x+16=5
Combine like terms:
7x+25=5
7x=-20
x=-20/7

II.) (3/11)·(5/6)-(9/12)·(4/3)+(5/13)·(6/15)
Remember PEMDAS
So first multiply:
3/11·5/6=15/66
9/12·4/3=3/3·1/1=3/3=1
5/13·6/15=1/13·6/3=6/39=2/13
(15/66)-1+(2/13)
Combine:
15/66-1/1=15/66-66/66=-51/66
-51/66+2/3=-51/66+44/66=-7/66
Answer: -7/66 :)
7 0
3 years ago
Read 2 more answers
State whether each pair of terms are like terms. (so yes or no)
Rom4ik [11]

Answer: 4xy and 3xy are, 2s and 5s are, but -10 and -10b aren't.

Step-by-step explanation: 4xy and 2xy have the same terms. 2s and 5s have the same terms but -10a and -10b have different variables.

7 0
3 years ago
Rewrite as a mathematical equation and solve: 3 less than the product of 5 and a number is 42. Find the number.
Temka [501]

5x-3=42. To solve you add three to both sides making the equation 5x=45. Then you divide both sides by five, and you get 9 as your answer.

8 0
3 years ago
Please help! If the m = 1/2 and the b = -2, then the linear equation is:
Vsevolod [243]

Answer:

y=1/2x-2

you write it in y=mx+b form

7 0
2 years ago
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I need help with math!!! time is running out!!! will mark brainliest!!!
marin [14]

These are the elements of the matrix

Elements of the first row are h11 h12 h13, of the second row h21 h22 h23.

Than we can conclude that element h23 worth 75.

Good luck!!!

3 0
3 years ago
Read 2 more answers
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