WILL GIVE BRAINLEIST PLEASE HURRY SUPER EASY.
Simplify each expression.
1. x + 4x + 6x= 2. 3x + 4x+ 5x = 3. 9(5)= 4.3x+8y+13x= 5.7(3x +5y)= 6. 3x+6x+2x=