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Igoryamba
3 years ago
6

Simplify and combine terms 9x+6-4x-2x+1-15

Mathematics
2 answers:
Colt1911 [192]3 years ago
8 0
1. Collect like terms

(9x - 4x - 2x) + (6 + 1 - 15)

2. Simplify

3x - 8
natta225 [31]3 years ago
8 0
Hello there!

Your answer would be 3x - 8, after being simplified. 

Have a good day! -Wajiha
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Answer:

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Option D is correct option.

Step-by-step explanation:

We are given:

K is the midpoint of PQ

Coordinates of P = (-9,-4)

Coordinates of K = (-1,6)

We need to find coordinates of Q  (x_2,y_2)

We will use the formula of midpoint: Midpoint=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

We are given midpoint K and x_1,y_1 the coordinates of P we need to find x_2,y_2 the coordinates of Q.

Midpoint=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})\\(-1,6)=(\frac{-9+x_2}{2},\frac{-4+y_2}{2})\\

Now, we can write

-1=\frac{-9+x_2}{2}, 6=\frac{-4+y_2}{2}\\Simplifying:\\-2=-9+x_2\:,\: 12=-4+y_2\\-2+9=x_2\:,\: 12+4=+y_2\\x_2=7\:,\:y_2=16

So, we get coordinates of Q (x_2,y_2) \:are\: \mathbf{(7,16)}

Option D is correct option.

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