loser74 loser74

06-10-2020
Mathematics

contestada

If x + 3 = 3x - 1 what is the value of x-1 ?
(hint: solve the first equation and Then substitute into the 2nd expression)

Respuesta :

idontdomaths idontdomaths

06-10-2020

Answer: x=2.5, and x-1=1.5

Step-by-step explanation:

x + 3 = 3x - 1

(-x)= 3 = 2x - 1

(÷2) = 1.5 = x - 1

(+1)= 2.5 = x

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