Question

Dacă se poate 6 si 7 va roggg !!!!

Answer 1

6).
x=5
x=7
4 la x=16
2 la 2x=2 la 4
2x=4
x=2

7) x+5=25
x=25-5=20

x-36=4
x=4+36=40

40-x=30
40-30=x
x=10

5x=30
x=30:5=6

2(x+3)=14
2x+6=14
2x=14-6
2x=8
x=4

3(x-2)=24
3x-6=24
3x=24+6
3x=30
x=10

x:6=10
x=10x6=60

5x:2=50
5x=50x2
5x=100
x=20

2(x+5):5=10
2x+10::5=10
2x+2=10
2x=10-2
2x=8
x=4