8x=84

Question

3(10.5)+14+5(10.5)-8
31.5+14+72.5-8
This ends up equaling 110, but it needs to equal 90. What am I doing wrong?

Answer 1

I have no clue what your expression is or what you are doing, so I will just complete your arithmetic

3(10.5)+14+5(10.5)-8
= 31.5 + 14 + 52.5 - 8
= 90

Answer 2

3(10.5)+14+5(10.5)-8

31.5+14+72.5-8

31.5 + 14 + 52.5 - 8 = 90

Did you subtract the 8?

Answer 3

The middle line has a typo. It should be

31.5 + 14 + 52.5 - 8