MATH SOLVE

7 months ago

Q:
# You and a friend are doing math homework together. You have to solve the equation 8 x plus 6 x minus 44 equals 66 minus 8 x8x+6x−44=66−8x. Your friend arrives at the incorrect answer x = 11. Find the correct value of x. Then find the error your friend possibly made.

Accepted Solution

A:

To answer this question you should get rid of like terms:

8x+6x-44=66-8x *remember to cross out the terms you use

14x-44=66-8x (I can't show it on the computer)

-14x +66 +66-14x

_________________

22=-22x

divide by -22 divide by -22

______________________

-1=x (right answer)

Friend maybe wrong: with calculations and may have gotten

22=-2x (wrong)

8x+6x-44=66-8x *remember to cross out the terms you use

14x-44=66-8x (I can't show it on the computer)

-14x +66 +66-14x

_________________

22=-22x

divide by -22 divide by -22

______________________

-1=x (right answer)

Friend maybe wrong: with calculations and may have gotten

22=-2x (wrong)