Question

X+2y=8
-x+3y=17

método de reducción ¿alguien la sabe?​

Answer 1

x=-2

y=5

Explanation:

x+2y=8 equation-1

-x+3y=17 equation-2

5y=25

Both side divided 5,

y=5

Equation-1, y=5

x+2(5)=8

x+10=8

Both side -10

x+10-10=8-10

x=-2

Equation-2, y=5

-x+3(5)=17

-x+15=17

Both side -15

-x+15-15=17-15

-x=2

x=-2