okay so you have 16z+3(24z-6)-(7+31z)
you must first distribute my teacher gave me a list when i was in pre-algebra
steps to solving multi step equations
~distribute
~clear fractions
~combine like terms(variables) on same side
~combine variables on opposite sides
~add/subtract
~multiply/divide
so you take 3 times 24, 3 times negative 6 and get 16z+72z-18-(7+31z)
now distribute the negative so you get 16z+72z-18-7-31z
got that far? Now it is pretty simple you add 16z and 72z getting 88z then subtract 31z getting 57z making it 57z-18-7
the final step is to take negative 18 and subtract 7 which equals -25 making the answer 57z-25
tadda!
