Question

Select the best possible first step to solving the system by first eliminating the y variable. 4x – 5y = 4 3x + 2y = –20 Multiply the first equation by –2 and multiply the second equation by 5. Multiply the first equation by 2 and multiply the second equation by –5. Multiply the first equation by 2 and multiply the second equation by 5. None of the above

Answer 1

the thir doption is considered the best
as it will change the term in y in first equation to -10y and term in y in second to +10y
so adding will eliminate y

adding a bit easier then subtracting

Answer 2

thankyou (:

Answer 3

yw