Question

y = x + 3
y = –2x – 7

Answer 1

Solve for x and y?

Answer 2

yes can you help me

Answer 3

Yup

Answer 4

y=x+3 (Eq1)
y=-2x-7 (Eq2)

=> 2(Eq1)+Eq2
2y=2x+6
y=-2x-7
----------
3y=1
y=1/3

1/3=x+3
1=3x+9
-3x=8
x=-8/3

check:
y=x+3
1/3=-8/3+3
1/3=1/3

Answer 5

thank you