Question

Select the best possible first step to solving the system by first eliminating the y variable.

4x – 5y = 4
3x + 2y = –20

a)Multiply the first equation by –2 and multiply the second equation by 5.

b)Multiply the first equation by 2 and multiply the second equation by –5.

c)Multiply the first equation by 2 and multiply the second equation by 5.

d)None of the above

Answer 1

it is c .after u multiply the first by 2 and the second by 5 ,the y terms becum 10y nd 10y.on addin dey will cancel out!

Answer 2

umm i meant -10y nd 10 y!!