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Write and solve the equation and then check your answer. Which statements are true about the equation and its solution? Check
all that apply.
A number decreased by thirty-one is fifty-two.
The correct equation is n+31 - 52.
The correct equation is n-31 - 52.
To check the solution, substitute 83 for the variable in the equation.
To check the solution, substitute 21 for the variable in the equation
This is an addition problem.
This is a subtraction problem.
To solve the equation, subtract 31 from both sides.
To solve the equation, add 31 to both sides.

Respuesta :

Ashraf82

The correct equation is n - 31 = 52

To check the solution, substitute 83 for the variable in the equation

This is an addition problem.

To solve the equation, add 31 to both sides.

Step-by-step explanation:

A number decreased by thirty-one is fifty-two

That means:

  • Subtract 31 from a number
  • The difference equal 52

Assume that the number is n

∵ The number is n

∵ When n decreased by 31 the answer is 52

∴ The equation is n - 31 = 52

The correct equation is n - 31 = 52

∵ n - 31 = 52

- To find n add 31 to both sides of the equation

∴ n - 31 + 31 = 52 + 31 ⇒ addition property

∴ n = 83

-To check the equation substitute n by 83 in the left hand side, the

  answer must be equal the right hand side

∵ Left hand side = 83 - 31 = 52

∵ Right hand side = 52

∴ n = 83 is correct answer

To check the solution, substitute 83 for the variable in the equation

This is an addition problem.

To solve the equation, add 31 to both sides.

Learn more:

You can learn more about solving equation in one variable in brainly.com/question/11306893

#LearnwithBrainly

deonarined

Answer:

The correct equation is n minus 31 = 52.

To check the solution, substitute 83 for the variable in the equation.

This is a subtraction problem.

To solve the equation, add 31 to both sides.

Step-by-step explanation:

I took the exam. these are right

These are WRONG

The correct equation is n + 31 = 52.

To check the solution, substitute 21 for the variable in the equation.

This is an addition problem.

To solve the equation, subtract 31 from both sides.

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