Question

How do you solve the system using the substitution method for x+2y=8 and y=6?

Answer 1

`color(brown)(x = -4`

Explanation:

`x + 2y = 8, " Eqn (1)"`

`y = 6, " Eqn (2)"`

Substituting the value of y from Eqn (2) in Eqn (1),

`x + (2 * 6) = 8`

`x = 8 - 12 = -4`