Question

X + 9y = 24

3x + 4y = 3
What is the system of equations by using the substitution method?

Answer 1

x=-3, y=3

Explanation:

x+9y =24/×3

3x +4y =3

=>

3x +27y =72

3x +4y =3

Remains

23 y =69

y=69 :23

y=3

Now we go to the first equation

x +9×3 =24

x +27 =24

x=24 - 27

x=-3

Answer 2

x=-3 , y=3

Explanation:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

Point Form:

(−3,3)

Equation Form:

x=−3

,

y=3