Kitkat412 Kitkat412

03-03-2016
Mathematics

Answered

Agustin solved an equation as shown. What error did Agustin make? What is the correct answer?

1/3x - 4 = 3/4x + 1

12 (1/3x) - 4 = 12(3/4x) + 1

4x - 4 =9x + 1

-5 = 5x

x= -1

Verified Answer :

garydesir1 garydesir1

03-03-2016

Subtract 3/4x from both sides

1/3x-4-3/4x= 3/4x+1-3/4x

-5/12x-4=1

Add 4 to both sides

-5/12x-4+4=1+4

-5/12x=5

Multiply both sides by 12/(-5)

(12/-5)(-5/12x)= (12/-5)(5)

x= 12

I hope that's help.

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