Question

- 4x – 4y = 24
3x + 10 = y

Answer 1

x=-4

y=-2

Explanation:

-4x-4y=24. .........1

3x+10=y...........2

since y is already isolated in equation 2 we can substitute the y value

subs 2 into 1

-4x-4(3x+10)=24.

-4x-12x-40=24

-16x=24+40

x=-4.....3

subs 3 into 2

3(-4)+10=y

-12+10=y

-2=y

Answer 2

x=-4,\:y=-2

Explanation: