How do you solve #z- - 797= 977#?

1 Answer
Feb 20, 2017

Answer:

#z = 180#

Explanation:

So first you simplify the left-hand side of the equation by simplifying

#z - (-797)#

into

#z + 797#

The equation at this point is

#z + 797 = 977#

You subtract #797# on both sides and get

#z + cancel(797) - cancel(797) = 977-797#

The #+797-797# cancels out so you are left with

#z = 977-797#

which gives you

#z = 180#