Răspuns:
a) 5x+1=16
5x=16-1
5x=15 =>x=3
b) 14-3x=31
-3x=31-14
-3x=17 =>
[tex] x = - \frac{17}{3} [/tex]
c) -2x+16=14
-2x=14-6
-2x=8 => x=-4
d) x+10=17-3x
x+3x=17-10
4x=4 =>
[tex]x = \frac{7}{4} [/tex]
e) -2x+16=7x-3
-2x-7x=-3-16
-9x=-19 =>
[tex]x = \frac{19}{9} [/tex]
:)
