Solve for z:

15 = - 45 + z

Z=?

Answer: z = 60

Explanation: To solve the equation 15 = - 45 + z, notice that the variable is on the right side of the equation. Don't let this throw you off.

To solve for z, we need to get z by itself on

the right side of the equation by adding 45.

However, if we add 45 to the right side of the equation,

we also must add 45 to the left side of the equation.

On the right, the - 45 and 35 cancel each other out and we have z and on the left side of the equation, 15 + 45 is 60.

So we have z = 60 which is

the solution to our equation.

15 = - 45 + z

Bring 45 to the other side by adding it to both sides.

15 + 45 = 60

60 = z

z = 60

Therefore, the value of z is 60.