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r-ruslan [8.4K]
3 years ago
15

Solve the equation 4c-20=-20+4c​

Mathematics
2 answers:
GaryK [48]3 years ago
6 0

Answer:

c= 1/5 =0.200

c=5

Step-by-step explanation:

Usimov [2.4K]3 years ago
5 0

Answer:

c=0

Step-by-step explanation:

first get the 4c on the right to the left so you minus it

c-20=-20 then add 20 to -20 you get 0

c=0

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7 0
3 years ago
Maggie needs to spend at least six hours each week practicing the piano. She has already practiced 3
grandymaker [24]

Answer:

t ≥ 1.5

Step-by-step explanation:

Lets take time for practicing the piano to be t

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8 0
3 years ago
7x+7+2z+9= please help me
fiasKO [112]

Answer:

7x+2z+16

Step-by-step explanation:

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8 0
2 years ago
Is the expression 2f + 4f + 2 – 3 equivalent to 6f – 1? 6f – 1 evaluated at f = 9 is 53. 2f + 4f + 2 – 3 evaluated at f = 9 is a
morpeh [17]
We have that

the expression 2f + 4f + 2 – 3-------> we can group it   (2f+4f)+(2-3)
(2f+4f)+(2-3)=(6f-1)
therefore
the expression [2f + 4f + 2 – 3] is equivalent to [6f-1]

if the expression [6f-1] for f=3 is 17
then
the expression [2f + 4f + 2 – 3] for f=3 is also 17

<span>let's check it
</span>[2*3 + 4*3 + 2 – 3]--------> [6+12+2-3]=[20-3]=17------> is ok
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3 years ago
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4 0
3 years ago
Read 2 more answers
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