Решите уравнения: 8 х+4=3 х+4,

4 (х-3) = х,

161 (2 х+2) = 161 х,

50 (х+3) = 250 (х+1),

1.8x-3x=4-4

5x=0

x=0

2. 4x-12=x

4x-x=12

3x=12

x=4

3.322x+322=161x

322x-161x=-322

161x=-322

x=-2

4.50x+150=250x+250

50x-250x=250-150

-200x=100

x=-0,5

5.2/15-2/15x-4/15-4/15x=7/15

-2/15x-4/15x=7/15-2/15+4/15

-6/15x=9/15

x=-3