Which answer choice describing 10÷15 is true? O. The equation 10÷15=15⋅10 is true because of the commutative property of multiplication. The equation 10÷15=110⋅15 is true because of inverse division operations. The equation 10÷15=10⋅5 is true because multiplication and division are inverse operations. The equation 10÷15=15÷10 is true because of the commutative property of division.

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.

The answer would be 16

2x + 3y = 114x + 2y = - 2 ( original equation x -1)4x + 6y = 22 ( original equation x 2)- 4x + 2y = - 2= 4y = 24÷4y = 62x + 18 = 11-182x = - 7÷2x = - 3.5