Question

Solve the system using elimination 18x - 9y = 0x - 9y = - 34

Answer 1

Let:

`18x-9y\text{ = 0 (1)}`
`x\text{-9y = -34 (2)}`

Now, (1) - (2)

`18x\text{-9y-(x-9y) = 0-(-34)}`
`17x=34`
`x=(34)/(17)\rightarrow x=2`

From (2)

`(2)-9y=-34`
`(2)+34=9y`
`y=(36)/(9)\rightarrow y=4`

The answer is x = 2, y = 4