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Error Analysis You and a friend are doing math homework together. You have to solve the

equation 5x + 4x - 68 = 34 - 8x. Your friend arrives at the incorrect answer x = -2. Find the correct
value of x. Then find the error your friend possibly made.
HELP PLEASE ASAP

User Beetle
by
5.1k points

2 Answers

3 votes

Answer:

x= 6

Explanation:

5x + 4x - 68 = 34 - 8x

First Combine Like Terms

9x - 68 = 34 - 8x

Add 8 On Both Sides

17x - 68 = 34

Add 68 On Both Sides

17x= 102

Divide By 17

x = 6

Check Your Solution

5(6) + 4(6) - 68 = 34 - 8(6)

30 + 24 - 68 = 34 - 48

54 - 68 = 34 - 48

-14 = -14

User TheBigBadBoy
by
5.8k points
2 votes

Answer: x=6

Explanation:

User Somnath Musib
by
5.0k points
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