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 + y = 2
3x + 2y = 9

these are my options
3(y + 2) + 2y = 9
3(-y + 2) + 2y = 9
3x + 2(y + 2) = 9
3x + 2(-y + 2) = 9
I think it might be A but I'm not sure . Please help me!

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 + y = 2
3x + 2y = 9

these are my options 
        3(y + 2) + 2y = 9
	3(-y + 2) + 2y = 9
	3x + 2(y + 2) = 9
	3x + 2(-y + 2) = 9 
I think it might be A but I'm not sure . Please help me!

anonymous · Answer

B choose b the answer is b!

anonymous · Answer

x+y=2 can be rewritten as x=-y+2
notice -y

anonymous · Answer

thank you soooooooooooooo much !