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atroni [7]
3 years ago
11

Rewrite the equations

Mathematics
1 answer:
melisa1 [442]3 years ago
7 0

Answer:

a) f(x) = 5x - 3

b) f(x) = 23x + 12

Step-by-step explanation:

Simply replace the variable y with f(x)

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How do i solve 5y - 10 = -25?
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So to find the answer you want to isolate the y. So the first thing you want to do is to move everything to the opposite side of the = sign. You start by adding 10 to both sides.
10+ 5y -10 = -25 +10  
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the tens cancel out on the left side and on the right you get left with -15/
Since y is being multiplied by 5 you always want to do the opposite so you divide by 5.
5y/5 = -15/5
y = -3
It's hard to explain but you just have to remember that what you do to one side you must do to the other to keep the equation balanced.

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If 5 becomes 11 and 12 becomes 25, what does 15 become?
Amiraneli [1.4K]

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31.

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