Question

cat face :
13x - 13 = 26
15x -17 = 19
7x - 10 = 7
8(x - 10) = 8
10(x - 20 ) = 0
25x +36 = 23x + 48
10(x - 20 ) = 0
25x + 36 = 23x + 48
37x - 19 = 15x - 19
3,2(0,5 + 4x ) = 14,4
4(3,9+ 0,5x ) = 20 , 8
daca puteti sa scrieti si cum va dat acest rezultat va rog

Answer 1

13x - 13 = 26
13x=26+13
13x=39
x=39:13
x=3
 
15x -17 = 19
15x=19+17
15x=36
x=36/15
x=2,4

7x - 10 = 7
7x=7+10
7x=17
x=17/7
x=2,428571

8(x - 10) = 8
x-10=8:8
x-10=1
x=1+10
x=11

10(x - 20 ) = 0
x-20=0:20
x-20=0
x=20

25x +36 = 23x + 48
25x-23x=48-36
2x=12
x=12:2
x=6

10(x - 20 ) = 0
x-20=0:20
x-20=0
x=20

25x + 36 = 23x + 48
25x-23x=48-36
2x=12
x=12:2
x=6

37x - 19 = 15x - 19
37x-15x=19-19
22x=0
x=0

3,2(0,5 + 4x ) = 14,4
0,5+4x=14,4:3,2
0,5+4x=4,5
4x=4,5-0,5
4x=4
x=4:4
x=1

4(3,9+ 0,5x ) = 20 , 8
3,9+0,5x=20,8:4
3,9+0,5x=5,2
0,5x=5,2-3,9
0,5x=1,3
x=1,3:0,5
x=2,6