Помогите решить уравнения 2х-3(х+2)=3 5(х+1)+4х=3 -3-5(3х+2.5)=5.5

1) 2x-3(x+2)=32x-3x-6=3-x=9x=-92)5(х+1)+4х=35x+5+4x=39x=-2x=4 1/2= 4,53)-3-5(3х+2.5)=5.5-3-15x-12.5=5.515x=15x=1

2х-3(х+2)=32х-3х- 6= 32х-3х = 3+6-1х = 9х = 9÷(-1)х = -95(х+1)+4х=35х +5 +4х =35х +4х = 3- 59х = -2х = -2/9-3-5(3х+2.5)=5.5-3-15х-12,5= 5,5-15х = 5,5+12,5+3-15х = 21х = - 21/15х = -7/5 = -1 2/5