Question

Solve for the indicated variable: ⅖(z + 1) = y for z.

Answer 1

Answer:

  z = 5/2y -1

Step-by-step explanation:

We observe that z has ...

• 1 added
• the sum multiplied by 2/5

To solve for z, we undo these operations in reverse order.

  $\dfrac{2}{5}(z+1)=y\qquad\text{given}\\\\z+1=\dfrac{5}{2}y\qquad\text{multiply by 5/2}\\\\\boxed{z=\dfrac{5}{2}y-1}\qquad\text{subtract 1}$

Answer 2

Step-by-step explanation:

Above is the solution....