Solve equation [2] for the variable y
`y = -4x + 5`
Plug this in for variable y in equation [1]
`2x - (-4x+5) = -2`
`6x = 3`
Solve equation [1] for the variable x
`6x = 3`
`x = 1/2`
By now we know this much :
`x = 1/2`
`y = -4x+5`
Use the x value to solve for y
`y = -4(1/2)+5 = 3`
Solution is `(1/2,3)`
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