Question

Rezolvati urmatoarele ecuatii si inecuatii.a)4(x-9)=4 b)5(x+3)=27+23 c)3x+2(x+5)=23 d)7x+3(x+2)=16 e)11+14=3(x-1)+16 f)13(x-2)-2x=7

Answer 1

b)5x+15=27+23
5x=50-15=35
x=35:5 => x=7
c)3x+2x+10=23
5x=13
x=13 supra 5
d)7x+3x+6=16
10x=10
x=1
f)13x-26-2x=7
11x=33
x=3