Can someone me with this?
1. if 3x+4=y+5, then y+5=3x+4 exemplifies which property?
2. if x = y and y = 10, then x = 10 exemplifies which property?

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

it is x equals 3   plese mark me really need it

step-by-step explanation: