Question

How do you solve the system `y= 2x + 10` and `y= 130` by substitution?

Answer 1

`y = 2x+10`
and `y =130`

we substitute the given value of `y` in the first equation:

`y = 2x+10`
`130 = 2x+10`
`120 = 2x`
`x=60`

hence the solutions are `color(green)(x=60 , y = 130`