Question

Mt.Mckinley is 20,321 ft in elevation. Mt.McKinley is 8,707 ft lower than Mt. Everest. What is the elevation of Mt.Everest?

I need to explain the variable
write an equation
and solve it

Answer 1

equation: x-8,707=20,321
+8,707 +8,707
x= 29,028 :)

Answer 2

29,028 ft.

Step-by-step:

Consider the following:

Mt. Everest - x

Equation:

We are given that Mt. McKinley is 20,321 ft in elevation, and that it is 8,707 ft. lower than Mt. Everest.

When writing this numerically:

20,321 = x - 8,707

Solve for x:

20,321 = x

+8,707 + 8,707

-------------------------

x = 29,028

Mt. Everest is 29,028 ft. in elevation.