Question

If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the first equation is substituted into the second equation.

x – 2y = 2
x + 3y = 17





x + 3(2y + 2) = 17
x + 3(–2y + 2) = 17
(2y + 2) + 3y = 17
(–2y + 2) + 3y = 17

If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the first equation is substituted into the second equation.

x – 2y = 2
x + 3y = 17





x + 3(2y + 2) = 17
x + 3(–2y + 2) = 17
(2y + 2) + 3y = 17
(–2y + 2) + 3y = 17
@Mathematics

Answer 1

first rearrange the first equation for x..
x=2y + 2
then plug it into the second
(2y+2) +3y =17
3rd answer

Answer 2

x = 2 + 2y
2+2y + 3y = 17
5y+2 = 17
5y = 15
y = 3

Answer 3

oh then it's the 3rd one