المعادلات تمارين حلول

Table1 Requête

N°	السؤال	A =
1	A+20= 35
2	A+20=2A+10
3	A+2A+=60-3A
4	A - 2/3 =15
5	6A+3=10-A
6	6(A - 1) = 3(A - 2)
7	1 – 2A = 5 + A
8	3 – 7a = 5 - a
9	4a - 1 = 2(3a - 1) + 5
10	2(3A+1) /5=2
11	(3A+1)/5=2A/3
12	(A+1)/5 + (3A-4)/3 = (4A-7)/15
13	4A-(A+3)=5(A-1)
14	3A-2(A-4)=5+4(1-2A)
15	5(A-2)-3(2A-4)=17-6A
16	4+3(a-2)=a/2-9+2 *6
17

1

A+20	=	35
A+20-20	=	35-20
A+0	=	15
A	=	15

2

A+20	=	2A+10
A+20-A	=	2A+10-A
20	=	A+10
20-10	=	A+10-10
10	=	A+0
10	=	A
A	=	10

3

A+2A	=	60-3A
3A	=	60-3A
3A+3A	=	60-3A+3A
6A	=	60
6A/6	=	60/6
A	=	10

4/1

A-2/3	=	15
(A-2/3)3	=	15*3
3A-2+2	=	45+2
6A	=	47
6A/6	=	47/6
A	=	47/6

4/2

A - 2/3	=	15
A - 2/3+2/3	=	15+2/3
A	=	45/3+2/3
A	=	47/3

5

6A+3	=	10-A
6A+A	=	10-A+A
5A	=	10
5A/5	=	10/5
A	=	2

6

6(A - 1)	=	3(A - 2)
6(A - 1)/3	=	3(A - 2)/3
2A-2	=	A-2
2A-2+2	=	A-2+2
2A	=	A
2A-A	=	A-A
A	=	0

7

1 – 2A	=	5 + A
1 – 2A-A	=	5 + A-A
1-A-1	=	5-1
-A*-1	=	4*-1
A	=	-4

8

3-7A	=	5-A
3-7A+A	=	5-A+A
3-6A-3	=	5-3
-6A	=	2
-6A/-6	=	2/-6
A	=	-1/3

9

4A-1	=	2(3a - 1) + 5
4A-1	=	6A-2+5
4A-1	=	6A+3
4A-1+1	=	6A+3+1
4A	=	6A+4
4A-6A	=	6A+4-6A
-2A	=	4
-2A/-2	=	4/-2
A	=	-2