Question 8(multiple choice worth 1 points) (04.03 lc) given the following system of equations:
−4x + 8y = 16
2x + 4y = 32
what action was completed to create this new equivalent system of equations? −2x + 4y = 8
2x + 4y = 32
a) divide the second equation, 2x + 4y = 32, by 2.
b) divide the first equation, −4x + 8y = 16, by 2.
c) multiply the second equation, 2x + 4y = 32, by −1.
d) multiply the first equation, −4x + 8y = 16, by −1.