Question

Solve the following simiutaneous equation 2x+y=1;x+3y=-7

Answer 1

Answer:

Step-by-step explanation:

Answer 2

2x+y=1

y=1-2x---------(1)

x+3y=-7

substituting y from (1) we get,

x+3(1-2x)=-7

x+3-6x=-7

-5x=-7-3

-5x=-10

x=2

Therefore, y=1-2x

=1-2*2

y = -3