Question

Describe the error.

Show or explain how to do the problem the right way.
Give the correct answer.
40 + 70 + ? = 360
110 + ? = 360
-110 -110
? = 250 degrees​

Answer 1

`\Large\boxed{250=250}`

Explanation:

To solve this problem, first you have to isolate it on one side of the equation. Remember to solve this problem, subtraction property of equality is subtract both sides of an equation have a same number doesn't change the equation.

First, add numbers.

`\displaystyle 40+70=110`

Next, subtract 110 from both sides.

`\displaystyle 110-110=360-110\\`

Solve.

`\displaystyle 360-110=250`

250=250 degrees.

Hope this helps!

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Good luck! :)

Answer 2

Explanation:

40 + 70 + ? = 360 (evaluate the value on the left hand side)

110 + ? = 360 (subtract 110 from both sides)

110 -110 + ? = 360 - 110 (evaluate both sides)

? = 250