Question

Ness Mathematics 2021 - VP1

Use the system of equations to answer the questions.
2x + 3y = 3
y = 8 - 3x
The value of y from the second equation is substituted back into the first equation. What is the resulting equation?
What is the value of x?
What is the value of y?

Answer 1

x=3, y=-1

Explanation:

2x+3(8-3x) =3

2x+24-9x=3

-7x+24=3

subtract 24 from both sides

-7x=-21

divide both sides by -7

x=3

y=8-3x

y=8-3(3)

y=8-9

y=-1