а)2x-5=27 б)-3+4y=-5
2x=27-5 4x=-5+3
2x=22 4x=-2
x=22÷2 x=-2÷4
x=11 x=0,5
в)2x-1=4x+3 г)1/3y+2=-1/6y+5
-2x=4 2y+12=-y+30
x=4÷(-2) 2y+y=30-12
x=-2 3y=18
y=18÷3
y=6
