3 years ago

5x + 2y = 17 and 3x - 2y = 7 *

Mathematics

2 answers:

Inessa [10]3 years ago

8 0

5x + 3x =8x and 2y- 2y =0 so the answer is 8x I guess I’m sorry idk

Lapatulllka [165]3 years ago

4 0

Answer:

(3,1)

Step-by-step explanation:

5x + 2y = 17

3x - 2y = 7

Add the two equations to eliminate y

5x + 2y = 17

3x - 2y = 7

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

8x = 24

Divide each side by 8

8x/8 = 24/8

x =3

Now we need to find y

5x+2y = 17

5(3) +2y =17

15+2y =17

Subtract 15 from each side

15-15+2y =17-15

2y =2

Divide each side yby2

2y/2 =2/2

y=1

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3 years ago

Is anyone good with this? I need help finding the answer.

scoray [572]

Answer:

parallel:

$7x - 8y = 60$

perpendicular:

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Step-by-step explanation:

original line:

-7x + 8y = 4

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parallel:

m = 7/8

L: 7x - 8y = k

(4, -4) -> L

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perpendicular:

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