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UNO [17]
3 years ago
6

13 + 2 (5c - 2) = 29 please help & explain how you get to the answer

Mathematics
2 answers:
creativ13 [48]3 years ago
8 0
13+2(5c-2)=29
(2*5c) and (2*-2)
13+10c-4=29
add 4
13+10c= 33
subtract 13
10c=20
divide by 10
c=2
katrin2010 [14]3 years ago
3 0
So you want to start by subtracting (13) from both sides... 

1) 2(5c−2)=29−132) 2(5c−2)=163) 5c−2=16/2
4) 5c−2=85) 5c=8+26) 5c=107) c=5​​/10​​<span>8) this leaves you with C=2</span>
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If 3a-2b= 8 and a+3b=7 what is the value of 4a+b?
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a+3b=7\\a=7-3b

Step 2: Substitute the value you just found for this variable in the other equation.

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Step 3: Use your new value for the second variable to find the first.

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What is the domain of the function<br> f(x)=1x-3<br> -3 when the range is {-6. 0, 9}?
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0 = 1x - 3, 0 + 3 = 1x - 3 + 3, 3 = x, <u>x = 3</u><u>.</u>

9 = 1x - 3, 9 + 3 = 1x -3 + 3, 12 = x, <u>x = 12</u>

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