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balandron [24]
3 years ago
15

(5x+3y) - (2x-7y) +8x

Mathematics
1 answer:
Pepsi [2]3 years ago
3 0

Answer:

11x + 10y

Step-by-step explanation:

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What is the answer to 5(n-7)=2(n+14) work
pickupchik [31]

Answer:

n = 21

Step-by-step explanation:

5(n-7)=2(n+14)

Distribute

5n -35 = 2n+28

Subtract 2n from each side

5n-2n -35 = 2n-2n +28

3n-35 =28

Add 35 to each side

3n-35+35 = 28+35

3n = 63

Divide by 3

3n/3 = 63/3

n =21

5 0
3 years ago
Read 2 more answers
#7. What are the values/ how do I do it
Tasya [4]

Answer:

x =2

SK = 21

KY = 13

SY = 34

Step-by-step explanation:

we can see from the picture the following:

SK + KY = SY  equation 1

SK=13x-5    equation 2

KY = 2x+9    equation 3

SY = 36-x     equation 4

using equation 2, equation 3 and equation 4 in equation 1 we have:

13x - 5 +  2x + 9 = 36-x  

15x +4 = 36 - x

15x +x = 36-4

16x = 32

x = 32/16

x= 2

using x as 2 we evaluate it in equation 2, equation 3 and equation 4:

SK=13(2)-5 = 21

KY= 2(2) +9 = 13

SY = 36-2 = 34

5 0
3 years ago
Write in slope-intercept form an equation of the line that passes through the points (−1,12) and (1,2).
zzz [600]

Answer:

y=-5x+7

Step-by-step explanation:

step 1

Find the slope

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have

the points (−1,12) and (1,2)

substitute

m=\frac{2-12}{1+1}

m=\frac{-10}{2}

m=-5

step 2

we know that

The equation of the line in slope intercept form is equl to

y=mx+b

where

m is the slope

b is the y-intercept

we have

m=-5

point\ (1,2)

substitute in the linear equation and solve for b

2=-5(1)+b

b=2+5=7

therefore

y=-5x+7

4 0
3 years ago
Help me please anybody
Archy [21]

Answer:

C

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
HELPP! <br> P(2, - 2); y = 7x+4<br> Write an equation for the line in point-slope form.
sasho [114]

Answer:

Step-by-step explanation:

y + 2 = 7(x - 2)

y + 2 = 7x + 14

y = 7x + 12

5 0
3 years ago
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