Question

Solve the following systems of linear equations using the substitution Method y = -x + 3 3x + 3y = 9​

Answer 1

Answer:

Infinitely many solutions.

Step-by-step explanation:

Given

$y = -x + 3$

$3x + 3y = 9$

Required

Using substitution method, solve

Substitute -x + 3 for y in $3x + 3y = 9$

$3x + 3(-x + 3) = 9$

Open bracket

$3x - 3x +9 = 9$

$9 = 9$

$0 = 0$

The above shows that there are infinitely many solutions.