Easy equation? Solve: 8x+11=39?

8x + 11 = 39
so 8x +11 - 11= 39 -11 (take 11 from each side)
then 8x = 28
so 8x/8 = 28/8 (divide through by 8)
x = 28/8 = 3.5

it depends what level of maths your at, as in year 11 and 12 you could do this in your head and get that answer and not show any working and the marker wouldnt deduct marks.

However, at yr 7 or 8 level you could be given this question and hav it worth 2 to 3 marks.
and by showing all the working it shows you understand what your doing so you'll be given the marks.

8x + 11 = 39
8x = 39 - 11
8x = 28
x = 28/8 or 3.5

Answer: x = 3.5

8x + 11 = 39
8x = 39 - 11
x = 28/8
x = 7/2 (3.5)

8x = 28

2x = 7

x = 3 • 5

8x + 11 = 39

Take eleven from each side.

8x = 28

Divide each side by 8.

x = 3.5

8x = 28 therefore 1x = 28 divided by 8x = 3.5

8x + 11 - 11 = 39 - 11
8x = 28
8x/8 = 28/8
x = 3.5

39-11=28
28/8=3.5