Use linear combination. To solve system

-2x+7y=10

X-3y=-3

Question

Mathematics

Weston Sweeney

13 February, 05:36

Use linear combination. To solve system

-2x+7y=10

X-3y=-3

+1

Answers (2)

Know the Answer?

Tristen · Answer 1

-2x + 7y = 10 ⇒ - 2x + 7y = 10

x - 3y = - 3 ⇒ - 2x + 6y = 6

y = 4

-2x + 7 (4) = 10

-2x + 28 = 10

-28 - 28

-2x = - 18

-2 - 2

x = 9

(x, y) = (9, 4)

Buffie · Answer 2

So

use elimintation

multily second equation by 2

2x-6y=-6

add to first equation

2x-2x+7y-6y=10-6

y=4

subsitute

x-3 (4) = - 3

x-12=-3

add 12 to both sdies

x=9

x=9

y=4

Use linear combination. To solve system-2x+7y=10X-3y=-3

Use linear combination. To solve system

-2x+7y=10

X-3y=-3