Question

Sherina wrote and solved the equation.

x-56=230
x-56-56=230-56
x=174
What was Sherina’s error?
Sherina’s work is correct.
Sherina only needed to subtract 56 from 230.
Sherina made a subtraction error when subtracting 56 from 230.
Sherina should have added 56 to both sides of the equation.

Answer 1

Last option: Sherina should have added 56 to both sides of the equation.

Explanation:

To solve the equation
`x-56=230` Sherina needed to solve for the variable "x".

To calculate the value of the variable "x" it is important to remember the Addition property of equality. This states that:

`If\ a=b\ then\ a+c=b+c`

Therefore, Sherina should have added 56 to both sides of the equation.

The correct procedure is:

`x-56+(56)=230+(56)\\x=286`

Answer 2

Sherina should have added 56 to both sides of the equation.

Explanation:

To solve this equation: x-56=230 you need to add 56 to both sides of the equation:

x-56 + 56=230 + 56 → x = 286.

Therefore, Sherina should have added 56 to both sides of the equation.