Tyson began solving the system {4x+2y=64x+5y=15 by writing −3y=−9 . Which property justifies this step? division property of equality multiplication property of equality sub…

Question

asked Oct 6, 2018 5.7k views

2 Answers

Songhir · Answer 1 · 2018-10-12T13:48:45+0000

4x+2y=6 (1)
4x+5y=15 (2)

1) - (2) =4x-x4 +2y -5y = 6 - 15
equivalent to -3y= -9
so the true answer is subtraction property of equality