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Look at Lin’s work below. She solved the equation 8(x-3)+7=2x(4-17) incorrectly.

Find the errors in her solution. What should her answer have been?
Lin’s solution:
Line 1 8(x-3)+7 =2x(4-17)
Line 2 8(x-3)+7 =2x(13)
Line 3 8x-24+7 =26x
Line 4 8x-17 =26x
Line 5 -17 =34x
Line 6 -12 =x

Which line has the error?

What is the error she made?

What is the correct solution to the equation 8(x-3)+7=2x(4-17) ?

User Groben
by
6.2k points

1 Answer

14 votes

Answer:

Her answer should have been x=17/34

Explanation:

User Neil Smithline
by
6.3k points