Question

What is the value of the x-coordinate of the solution of the system of equations `2x+7=6, y-3=x`?

Answer 1

`x=-1/2`

Explanation:

`"solve "2x+7=6`

`"subtract 7 from both sides"`

`2xcancel(+7)cancel(-7)=6-7`

`2x=-1`

`"divide both sides by 2"`

`(cancel(2) x)/cancel(2)=(-1)/2rArrx=-1/2`