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

answers

1. 2(5y − 1) + 4y = −4

2. 2(−5y + 1) + 4y = −4

3. 2x + 4(−5y + 1) = −4

4. 2x + 4(5y − 1) = −4