Kitkat412
contestada

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

Respuesta :

garydesir1

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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