SOLUTION: please help me solve: F(x)=3x g(x)=x+7 solve f(2)-g(3)
Is it: f(2.3x)-g(3.x+7)= 6x-3x+21
3x+21divided by 3 = x+7
The . is a times sign!
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Question 914435: please help me solve: F(x)=3x g(x)=x+7 solve f(2)-g(3)
Is it: f(2.3x)-g(3.x+7)= 6x-3x+21
3x+21divided by 3 = x+7
The . is a times sign!
Found 2 solutions by Alan3354, jim_thompson5910:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
please help me solve:
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It's not solving. Equations are solved, this is not one.
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Use * (Shift 8) for multiply, or the "times sign."
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F(x)=3x g(x)=x+7 solve f(2)-g(3)
Assuming f(x) and F(x) are the same:
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f(x) = 3x
To find f(2), sub 2 for each x
f(2) = 3*2 = 6
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g(x) = x+7
Wherever there's an x, sub a 3
g(3) = 3+7 = 10
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===================
f(2) - g(3) = 6-10 = -4
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You're making it more complicated than needed. Divided? Calm down.
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Is it: f(2.3x)-g(3.x+7)= 6x-3x+21
3x+21divided by 3 = x+7
The . is a times sign!
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
First compute f(2)
f(x) = 3x
f(2) = 3*2 ... replace EVERY x with 2
f(2) = 6
-------------------------------------------------------
Now compute g(3)
g(x) = x+7
g(3) = 3+7 ... replace EVERY x with 3
g(3) = 10
-------------------------------------------------------
So,
f(2) - g(3) = 6 - 10 = -4
In short, f(2) - g(3) = -4
Let me know if you need more help or if you need me to explain a step in more detail.
Feel free to email me at jim_thompson5910@hotmail.com
or you can visit my website here: http://www.freewebs.com/jimthompson5910/home.html
Thanks,
Jim
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