1. m+7
2. m-7
3. 7m
4. m/7
5. 7/m
6 .m/2
7. (m+n)²
8. 12m+2
9. 100m+2
10. 4m=7*4=28 28+8=36
11. 5m=50 5n=15 5(m-n) = 5m-5n = 50-15=35
12. 15m=30 8n=-8 30-(-8)+10 = 30+8+10=48
13. 6-7m+8 = 2+7m
14. 0,25m/2 = 0,125m
15. 3,6m-4m= -0,4m
16. 0,5*8m=4m
17. 15m*20 = 320m
18. 19m+6m+2-15=25m=13
19. 2m-4+3m-8 = 5m-12
20. 3m=-1 m=1/3 -6m+5+2m-2+m=-3m+3=-1+3=2
21. x+62=34 |-62
x=-28
22. 1,5+x=4,25 |1,5
z=2,75
23. 5x+5=50 |-5
5x=45 |/5
x=7
24. 5x-6+2x-1 = 14
7x-7=14 |+7
7x=21 |/7
x=3
25. 7-6x=49|+7
6x=56 |/6
x=9
26. -8*2x-10=22
-16x-10=22 |+10
32=-16x |/-16
x=-2
27. 10-5x=60 |-10
-5x=50 |/-5
x=-10
28. Maja=x Asia=4x 75=4x+x
5x=75 x=15
4x=60
29. Zosia=x+15 Basia=x 95=x+x+15 |-15
80=2x
40=x
30. 66=x+x+1+x+2
66=3x+3 |-3
63=3x
x=21
Szczegółowe wyjaśnienie:
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1. m+7
2. m-7
3. 7m
4. m/7
5. 7/m
6 .m/2
7. (m+n)²
8. 12m+2
9. 100m+2
10. 4m=7*4=28 28+8=36
11. 5m=50 5n=15 5(m-n) = 5m-5n = 50-15=35
12. 15m=30 8n=-8 30-(-8)+10 = 30+8+10=48
13. 6-7m+8 = 2+7m
14. 0,25m/2 = 0,125m
15. 3,6m-4m= -0,4m
16. 0,5*8m=4m
17. 15m*20 = 320m
18. 19m+6m+2-15=25m=13
19. 2m-4+3m-8 = 5m-12
20. 3m=-1 m=1/3 -6m+5+2m-2+m=-3m+3=-1+3=2
21. x+62=34 |-62
x=-28
22. 1,5+x=4,25 |1,5
z=2,75
23. 5x+5=50 |-5
5x=45 |/5
x=7
24. 5x-6+2x-1 = 14
7x-7=14 |+7
7x=21 |/7
x=3
25. 7-6x=49|+7
6x=56 |/6
x=9
26. -8*2x-10=22
-16x-10=22 |+10
32=-16x |/-16
x=-2
27. 10-5x=60 |-10
-5x=50 |/-5
x=-10
28. Maja=x Asia=4x 75=4x+x
5x=75 x=15
4x=60
29. Zosia=x+15 Basia=x 95=x+x+15 |-15
80=2x
40=x
30. 66=x+x+1+x+2
66=3x+3 |-3
63=3x
x=21
Szczegółowe wyjaśnienie: