Question

6x+3y=-3
2x+4y=-22
solve by substitution

Answer 1

Answer: x = 3, y = -7

Explanation:

6x+3y=-3 , 2x+4y=-22

Isolate x for 6x + 3y = -3: x = - y-1/2

Substitute x = - y-1/2: [2(- y-1/2) + 4y = -22]

Simplify: 3y - 1 = -22

Isolate y for 3y - 1 = -22: y = -7

Now we add x's value into y: - y-1/2 --> 7-1/2 --> 6/2 = 3