Question

Rezolvati in R ecuatia
b)2x+(3-6x)=-17
e)2pe3(4x-1pe3)=1pe9

Answer 1

b) 2x+(3-6x)=-17
3-6x=-17-2x
3+17=-2x+6x
20=4x
x= $\frac{20}{4}$=5

c) $\frac{2}{3}$( $\frac{4x-1}{3}$)= $\frac{1}{9}$

$\frac{4x-1}{3}$= $\frac{1}{9}$- $\frac{2}{3}$

$\frac{4x-1}{3}$= $\frac{1-6}{9}$

$\frac{4x-1}{3}$= $\frac{-5}{9}$

4x-1= $\frac{3\cdot (-5)}{9}$

4x-1= $\frac{-15}{9}$

4x-1= $\frac{-5}{3}$

4x= $\frac{-5}{3}$+1

4x= $\frac{-5+3}{3}$

4x= $\frac{-2}{3}$

x= $\frac{-2}{3}$:4

x= $\frac{-2}{3}$· $\frac{1}{4}$

x= $\frac{-1}{6}$

Sper să te ajute! ^_^