Solve the equation x-4/2=10

Explain how you do each step what term makes it inconsistent y=2x - 4 ?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Cal's go cart has a gas tank with the dimensions shown below. he uses a gas can that holds 11 gallon of gas, to fill the go cart tank. 11 gallon = 231 inches^3 how many full gas cans will it take to fill the go cart's gas tank?