Question

How do you solve using the substitution method: `2x + y = 29, x = 4`?

Answer 1

`y=21`, `x=4`

Explanation:

You can substitute `4` as `x` in the first equation because `x` and `4` are equal.

`2(4)+y=29`

`8+y=29`

`y=21`

Now you know `y`