1. 0,3p – 5 = 6 – 0,7p
2. 9c + 2,65 = 36,85 – 9c
3. 5 = – 1 – (3 – 9x)
4. – 9 – (8x – 11) = 12
5. 12 = (7x – 9) – (11 – x)
6. 11x + 103 = 1 + (12x – 31)
7. (2x + 3) –(5x + 11) = 7 + (13 –2x)
8. (2x + 3)+(3x+4)+(5x + 5)=12 –7x
9. 6x = 1 – (4 – 6x)
10. 6y – (y – 4) = 4 + 5y
11. 5,6 – 7y = – 4(2y – 0,9) + 2,4
12. x – 0,5 = 2(0,3x – 0,2)
13. 3(2,5 – 2x) = 13,5 – 14x
14. 0,6y – 1,5 = 0,3(y – 4)
15. 0,5(4 – 2a) = a – 1,8
16. 7(3 + x) = 2(x – 5) + 8
17. –0,2(5 – 0,7x) + 0,02 = 1,4(x–1,6)
18. 1,2(3b + 5) = 2(2,4b – 3,6)
19. 3,2(5x – 1) = 3,6x – 9,4
20. 8(0,7x – 4) – 2(0,2x – 3) = – 39
21. – 3(2,1z – 4)– 4,2 = 1,2(– 5z+ 0,5)
22.6,4(2 – 3y) = 6(0,8y – 1) + 6,

мне нужны решения и ответы на всё зарание спосибо

Вопрос школьника по предмету Алгебра

1. 0,3p – 5 = 6 – 0,7p
2. 9c + 2,65 = 36,85 – 9c
3. 5 = – 1 – (3 – 9x)
4. – 9 – (8x – 11) = 12
5. 12 = (7x – 9) – (11 – x)
6. 11x + 103 = 1 + (12x – 31)
7. (2x + 3) –(5x + 11) = 7 + (13 –2x)
8. (2x + 3)+(3x+4)+(5x + 5)=12 –7x
9. 6x = 1 – (4 – 6x)
10. 6y – (y – 4) = 4 + 5y
11. 5,6 – 7y = – 4(2y – 0,9) + 2,4
12. x – 0,5 = 2(0,3x – 0,2)
13. 3(2,5 – 2x) = 13,5 – 14x
14. 0,6y – 1,5 = 0,3(y – 4)
15. 0,5(4 – 2a) = a – 1,8
16. 7(3 + x) = 2(x – 5) + 8
17. –0,2(5 – 0,7x) + 0,02 = 1,4(x–1,6)
18. 1,2(3b + 5) = 2(2,4b – 3,6)
19. 3,2(5x – 1) = 3,6x – 9,4
20. 8(0,7x – 4) – 2(0,2x – 3) = – 39
21. – 3(2,1z – 4)– 4,2 = 1,2(– 5z+ 0,5)
22.6,4(2 – 3y) = 6(0,8y – 1) + 6,

мне нужны решения и ответы на всё зарание спосибо

Ответ учителя по предмету Алгебра

№1

0,3p – 5 = 6 – 0,7p
0.3p + 0.7p=6+5
p=11
№2

9c + 2,65 = 36,85 – 9c
9c+9c=36.85-2.65
18c=34.2
c=1.9
№3

5 = – 1 – (3 – 9x)
5=-1-3+9x
-9x=-1-3-5
-9x=-9
x=1
№4

– 9 – (8x – 11) = 12
-9-8x+11=12
-8x=12-11+9
-8x=10
x= -1.25
№5

12 = (7x – 9) – (11 – x)
12=7x-9-11+x
-7x-x=-12-9-11
-8x=-32
x=4
№6

11x + 103 = 1 + (12x – 31)
11x+103=1+12x-31
11x-12x=1-31-103
-x=-133
x=133
№7

(2x + 3) –(5x + 11) = 7 + (13 –2x)
2x+3-5x-11=7+13-2x
2x-5x+2x=7+13-3+11
-x=28
x=-28
№8

(2x + 3)+(3x+4)+(5x + 5)=12 –7x
2x+3+3x+4+5x+5=12-7x
2x+3x+5x+7x=12-5-4-3
17x=0
x=0
№9

6x = 1 – (4 – 6x)
6x=1-4+6x
6x-6x=1-4
0≠-3

Решений нет

№10

6y – (y – 4) = 4 + 5y
6y-y+4=4+5y
6y-y-5y=4-4

0y=0
y=любое
№11

5,6 – 7y = – 4(2y – 0,9) + 2,4
5.6-7y=-8y+3.6+2.4
-7y+8y=3.6+2.4-5.6
y=0.4
№12

x – 0,5 = 2(0,3x – 0,2)
x-0.5=0.6x-0.4

x-0.6x=-0.4+0.5

0.4x=0.1

x=0.25

№13

3(2,5 – 2x) = 13,5 – 14x
7.5-6x=13.5-14x
-6x+14x=13.5-7.5
8x=6
x=0.75
№14

0,6y – 1,5 = 0,3(y – 4)
0.6y-1.5=0.3y-1.2

0.6y-0.3y=-1.2+1.5

0.3y=0.3

y=1

№15

0,5(4 – 2a) = a – 1,8
2-a=a-1.8
-a-a=-1.8-2
-2a=-3.8
a=1.9
№16

7(3 + x) = 2(x – 5) + 8
21+7x=2x-10+8
7x-2x=-10+8-21
5x=-23
x=-4.6
№17

–0,2(5 – 0,7x) + 0,02 = 1,4(x–1,6)
-1+0.14x+0.02=1.4x-2.24
0.14x-1.4x=-2.24+1-0.02
-1.26x=-1.26
x=1
№18

1,2(3b + 5) = 2(2,4b – 3,6)
3.6b+6=4.8b-7.2
3.6b-4.8b=-7.2-6
-1.2b=-13.2
b=11
№19

3,2(5x – 1) = 3,6x – 9,4
16x-3.2=3.6x-9.4
16x-3.6x=-9.4+3.2
12.4x=-6.2
x=-0.5
№20

8(0,7x – 4) – 2(0,2x – 3) = – 39
5.6x-32-0.4x+6=-39
5.6x-0.4x=-39+32-6
5.2x=-13
x=-2.5

№21

– 3(2,1z – 4)– 4,2 = 1,2(– 5z+ 0,5)
-6.3z+12-4.2=-6z+0.6
-6.3z+6z=0.6-12+4.2
-0.3z=-7.2
z=24
№22

6,4(2 – 3y) = 6(0,8y – 1) + 6
12.8-19.2y=4.8y-6+6
-19.2y-4.8y=-6+6-12.8
-24y=-12.8
y= 8/15