Ребят, помогите решить уравнения.

1.) 7x+3=30-2x

2.) 3 (x-2) = x+2

3.) 5-2 * (x-1) = 4-x

4.) 0.2x+2.7=1.4-1.1x

5.) 0.2 (7-2y) = 2.3-0.3 (y-6)

1) 7x+3=30-2x

7x+2x=30-3

9x=27

x=3

2.) 3 (x-2) = x+2

3x-6=x+2

3x-x=2+6

2x=8

x=4

3.) 5-2 * (x-1) = 4-x

5-2x+2=4-x

-2x+x=4-5-2

-x=-3

x=3

4.) 0.2x+2.7=1.4-1.1x

0.2x-1.1x=-1.4-2.7

-0.9x=-1.3

x=1.4

5.) 0.2 (7-2y) = 2.3-0.3 (y-6)

1.4-0.4y=2.3-0.3y+1.8

-0.4y+0.3y=2.3+1.8-1.4

-0.1y=2.7

y=-27