Question

Moira solved a problem on the board. what error did moira make and how can she correct it? 12.25x 10 = 54 – 10.25x; 12.25x 10 – 10 = 54 – 10.25x – 10; 12.25x = 44 – 10.25x; 12.25x – 10.25x = 44 – 10.25x 10.25x; 2x = 44; x = 22.

Answer 1

Moira made an error in the step of the equation where she subtracted 10.25x from both sides. To correct it, she should leave the equation as 12.25x - 10.25x = 44 and combine like terms.

Step-by-step explanation:

The error Moira made was in the step: 12.25x - 10.25x = 44 - 10.25x 10.25x. The correct step should be: 12.25x - 10.25x = 44. Now, we can combine like terms on the left side of the equation, which gives us 2x = 44. To isolate x, we divide both sides of the equation by 2, resulting in x = 22.