Question

Ex: Solve by graph 2x + 3y = 2 and x
2y = 8
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Answer 1

Step-by-step explanation:

The given equation

2x+3y=2

x+2y=8

we can do

first equation multiple with 2

second equation multiple with 3

4x+6y=4

3x+6y=24

(-) (-) (-)

change the sign

we get

x=-20

x=-20 substitute the equation (1)

2(-20)+3y=2

-40+3y=2

3y=2+40

y=42/3

y=14

we got ( x,y)=(-20,14)