Solve the following equations
30 ÷ 15 - 10, 30 ÷ (15-10)

a) 6, 8

b) -8, 6

Sol:
equation 1:
30/15 -10
= 6/3 -10
= 6- 30 / 3
= -24 /3
= -8

equation 2:
30 / (15-10)
= 30 / 5
=  6

hence the correct answer is ( -8 , 6 ) option B