Question

Determine as equação:
x-3x+=0

x-4x+=0

2x+2x+1=0

x+3x=0

Answer 1

a)$x-3x+2=0$
$-2x=-2$
$x= \frac{-2}{-2}$
$x=1$

b)$x-4x+4=0$
$-3x=-4$
$x= \frac{-4}{-3}$
$x= \frac{4}{3}$


c)$2x+2x+1=0$
$4x =-1$
$x= \frac{-1}{4}$


d)$x+3x=0$
$4x=0$
$x= \frac{0}{4}$
$x=0$