Simplify using multiple properties, as far as you can:
9(3x - 5) + 4x -12 =
31x -57
9(3x - 5) + 4x -12 =27x-45+4x-12=31x-57
let's see:
9(3x-5)+4x-12
= 9*3x-9*5+4x-12
= 27x-45+4x-12
= 27x+4x=31x and -45+12=57
= 31x-57
yep those two are right. ever consider becoming a member?
