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vova2212 [387]
3 years ago
7

Given f(x)=x+7 and g(x)=x-3 what is f(x)+g(x) ? A.2x+4 B.10x C.2x-7 D.-2x+10

Mathematics
2 answers:
Zinaida [17]3 years ago
7 0
F(x)+g(x) = (x+7) + (x-3) =
                  x + 7 + x - 3 =
                  2x + 4

<span>
A.2x+4</span>
Mademuasel [1]3 years ago
4 0
F(x) = x+7
g(x) = x-3

f(x) + g(x) = ?

Steps:

(x+7) + (x-3) 

(x+x) + (7-3) --> Combine like terms 

2x + 4

The answer should be A. 2x + 4
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8 0
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I need help and i would appreciate it and can you explain (That's if you can explain)
Finger [1]

Answer:

x=-2

y=-3

Step-by-step explanation:

-9x+4y = 6

9x+5y = -33

We will add these together to eliminate x

-9x+4y = 6

9x+5y = -33

----------------

0x +9y =- 27

9y = -27

Divide by 9

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We still need to find x

9x +5y = -33

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Add 15 from each side

9x+15-15 =-33+15

9x=-18

Divide by 9

9x/9 = -18/9

x = -2

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