Question

(2x – 4 y = -8
- 3x+3y= 9​

Answer 1

Answer:

Explanation:

Simplifying your System we get

x

+

2

y

=

7

x

+

y

=

3

Multiplying the second equation by

−

1

and adding to the first we get

y

=

4

and for

x

we find

x

=

3

−

4

=

−

1

Answer 2

$2x - 4y = - 8$

$2x = - 8 + 4y$

2x / 2 = 4y - 8 / 2

x = 4y - 8 / 2

$x = 2y - 4$

ii ) - 3x + 3y = 9

$- 3x = 9 - 3y$

- 3x / - 3 = 9 - 3y / - 3

x = 9 - 3y / - 3

$x = y - 3$