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 second equation is substituted into the first equation:
2x – 3y = –29
x + 4y = 13

2(–4y + 13) – 3y = –29
2x – 3(4y + 13) = –29
2(4y + 13) – 3y = –29
2x – 3(–4y + 13) = –29

Answer 1

subtract 4y from both side

Answer 2

x=-4y+13

Answer 3

plug that into first equation where you see x , replace with -4y+13