Question

urgent!!!!!!
Faceți exercițiile încercuite .

Answer 1

1.a)x+2=8
x=8-2=4
b)5+x=9
x=9-5=4
c)x-3=7
x=7-3=4
2.a)2*x = 12
x=12:2=6
b)x*5=25
x=25:5=5
c)x*3=27
x=27:3=9
3.a)2x+5=9
2x=9-5
2x=4
x=4:2
x=3
b)39-3x=15
3x=15+39
3x=54
x= 54:3
x=18
c)7x+6=20
7x=20-6
7x=14
x=14:7
x=2
4.a)x+26=30
x=30-26
x=4
b)2x*8=0
2x=8:0
2x=0
x=2:0
x=0
c)5x+23=44
5x=44-23
5x=21
x=21:5
x=4,2