Question

3x+2y=-5

x-y=10
what is the solution

Answer 1

Answer: y=-25

Step-by-step explanation:

3(y+10)-2y=5

3y+30-2y=5

y+30=5

y=5-30

Answer 2

`(x,y)=(3,-7)`

Explanation:

`x-y=10 \implies 2x-2y=20 \\ \\ (3x+2y)+(2x-2y)=-5+20 \implies 5x=15 \implies x=3 \\ \\ \therefore 3-y=10 \implies y=-7 \\ \\ \therefore (x,y)=(3,-7)`.