Question

Solve by substitution. Check the solution.

Answer 1

Answer:

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

Step-by-step explanation:

y = 3x + 1 --------------- eqn ( I )

And, 2x + y = -4 ---------- eqn ( ii )

So,

in eqn ( ii ) putting the value of y.

2x + 3x + 1 = -4

=> 5x = -4 - 1

=> 5x = -5

=> x = -1

Again,

y= 3x+1

so, y= 3 X (-1) + 1

y= -3 + 1

y= -2

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

Answer 2

(x,y)=(-1,-2) hope this helps