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 + 4y = –9
2x + 5y = –6

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 + 4y = –9
2x + 5y = –6

anonymous · Answer

using substitution
x + 4y = –9
x= –9-4y     substitute it to the second equation

anonymous · Answer

4x + 5(–4x – 2) = –18
		
4x + 5(4x – 2) = –18
		
4(–4x – 2) + 5y = –18
		
4(4x – 2) + 5y = –18

anonymous · Answer

wich 1

anonymous · Answer

which answer is it???

anonymous · Answer

out of the four answerrs i gave you wich 1