Question

Rezolva urmatoarele ecuatii si inecuatii
a) 7x=56
b)3x+5=20
c)13-2x= 5
d) 50-4x=11-5
e)4( x - 9 ) =4
f) 6 (x + 1 ) -10 = 29 -3
g)5 ( x + 3 ) = 27+23
h)3x+ 3 + 2 (x + 5 )=23
i)7x+3 (x + 2 ) =16
j) 11+14 = 3 (x -1 )+16
k) 13 (x - 2 ) - 2x=7
l) (x+4200) :80=81

Answer 1

a) ×= 56:7 ×=8 b) 3×+5=20 3×=20-5 3×=15 ×=15:3=5 :D