Question

Solve the system of equations.

x + 3y = -1
2x + 2y = 6

Answer 1

here maybe use substitution

from first equation
x+3y = -1 subtract 3y from both sides
x-3y-3y = -1-3y
x=-1-3y

we know x so substitute in 2nd equation to find y

2(-1-3y) + 2y = 6 multiply thru parentheses

-2-6y + 2y = 6 combine the like terms

-2-4y=6 add 2 both sides
-2+2-4y = 6+2
-4y=8

can you get it from here?