Respuesta :

Answer:

z = 473

Step-by-step explanation:

So the equation looks like this:

z-303=170

So in order to only get the variable z on one side and the numbers on the other we are going to have to add 303 to both sides of the equal signs:

z - 303 = 170

 + 303   +303

z = 473

So the answer to what the variable z equals is 473, so how do we know if 473 is the answer? Well we substitute 473 where the z variable is in the equation and solve it:

z-303=170 or (473) - 303 = 170

and if you subtract 303 from 473 you will get 170 as your answer

I hope this helps you!