Question

Need help again with math homework please!

Question 1: Write an equation to solve for the question mark.

Question 2: Explain the error the student made.

Question 3: Find x.

Question 4: Find m
Thank you!!

Answer 1

`Question \: 1: \: let \: the \: question \: mark \: be \: n \\ n = 63 \\ </p><p>Question \: 2: \: the \: error \: the \: student \: made \: is \: \\ 4x + 40 = 6x - 10 \: insteade \: of : \\ 4x + 40 + 6x - 10 = 180. \\ </p><p>Question \: 3: \: x = 15 \\ </p><p>Question \: 4: m( GFC)</p><p> = 80. \\`

Explanation:

`let \: the \: unknown \: be \: n \\ then \\ 87 + n = 150 \\ n \: = 150 - 87 = 63. \\ the \: mistake \: is \: by \: the \: expression : \\ 4x + 40 = 6x - 10 \: insteade \: of : \\ 4x + 40 + 6x - 10 = 180. \\ 10x = 150 \\ x = 15. \\ 6x - 10 = 6 * 15 - 10 \\ GFC</p><p> = 80. \\`