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 + 5y = 1
2x + 4y = –4

a. 2(5y – 1) + 4y = –4

b. 2(–5y + 1) + 4y = –4

c. 2x + 4(–5y + 1) = –4

d. 2x + 4(5y – 1) = –4

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 + 5y = 1
2x + 4y = –4

a. 2(5y – 1) + 4y = –4

b. 2(–5y + 1) + 4y = –4

c. 2x + 4(–5y + 1) = –4

d. 2x + 4(5y – 1) = –4

phi · Answer

this looks like the previous question.  Are you not understanding something?

anonymous · Answer

a

anonymous · Answer

im sorry, this was not the right question.