How do you solve? 2z - 2z(1 + 3) = 48

First, we want to distribute the 2z to what's in the parentheses:

Then we need to distribute the negative sign outside of the parentheses in order to make it easier to solve and combine like terms:

Now we combine like terms. The '2z' and '-2z' cancel each other out, so:

Then we solve for z by dividing by -6 on both sides:

So now we know that z = -8.

5.25 ounces

step-by-step explanation:

divided 3/4 and 6