hjælp!!!

jeg vil gerne have en til at rette min matematik opgaver..

Opg 1

a. 2x-(3+7x)>x+9
2x3-7x>x+9
3-9>-2x+7x+x
-6>6x
-1>x

b. 3(10x+6)≥88-5x
30x+18≥88-5x
30x+5x≥88-18
35x≥70
x≥2

c. 6(9x+4)≤24-42x
54x+24≤24-42x
54x+42≤24-24
96≤0

d. -3+2(x+4)≤2(x+3)
-3+2x+8≤2x+6
2x-2x≤3-8+6
x≤1

e. 3x-6>2(x-2)+x
3x-6>2x-4+x
3x-2x-x>6-4
x>2

opg 2
a. 3x+5<x+13 3x+4≥x+6
3x-x<13-5 3x-x≥6-4
2x<8 2x≥2
X<4 x≥1

b. 6x+9>5x+1≥3x+13
6x+9>5x+1 5x+1≥3x+13
6x-5x>-9+1 5x-3x≥13-1
x>-8 2x≥12
x>-8 x≥6
c. 2x+3>2(x+1)>3(x+2)-x
2x+3>2x+2>3x+6-x
2x+3>2x+2 2x+2>3x+6-x
3-2>2x-2x 2x-3x+x>6-2
1>x x>4