Question

solve for x & y, x-2y+11=0, 2x-3y+18=0​

Answer 1

Answer:

y=4 and x=-3

Step-by-step explanation:

x-2y+11=0

2x-3y+18=0

x-2y=-11. ×4

2x-3y=-18. ×2

4x-8y=-44

4x-6y=-36

(-). (+). (+)

-2y=-8

y= 8÷2

y=4

to solve 'x'

2x-3y=-18

2x-3×(4)=-18

2x-12=-18

2x=-6

X=-6÷2

x=-3

Answer 2

x - 2y + 11 = 0

solve for x

x + 11 = 2y

x = 2y - 11

solve for y

- 2y + 11 = - x

- 2y + 11 = -x

- 2y / - 2 = - x - 11 / - 2

y = - x - 11 / 2

y = x + 11 / 2

2x - 3y + 18 = 0

solve for x

2x + 18 = 3y

2x - 3y - 18

2x / 2 = 3y - 18 / 2

x = 3y - 18 / 2

x = 3y / 2 - 9

solve for y

- 3y + 18 = - 2x

- 3y = - 2x - 18

-3y / 3 = - 2x - 18 / - 3

y = - 2x - 18 / - 3

y = 2x + 6 / 3