Question

exercitiul 7 va rog DAU COROANA

Answer 1

a)6x-3-15x+5=1
-9x=1-2
-9x=-1
x=1/9

b)4x+8=6x-2+5
4x-6x=-2+5-8
-2x=-5
x=5/2

c)3y+12+6y+2y=3
11y=-9
y=-9/11

d)6z+18-25=10z-5+3z
6z-13z=-5+7
-7z=+2
z=-2/7

e)4t+12-5+10t=6t-1
14t-6t=-1-7
8t=-8
t=-1

f)5x+10-18=2x-10-x
5x-x=-10+8
4x=-2
x=-1/2