Question

Exercitiul 8 va rog

Answer 1

pe b nu l am stiut.
sper ca te am ajutat

Answer 2

a) 5x+11=66/-11
5x=55/:5
x=11
b) x:(-3)=-12/x (+3)
x= -36
c)120:x=-30/ x 120
x= - 3600
d)x ori (-7)=14/:7
x= 2
e)35-x=23/+35
x=58
f)4-3x=-35/+4
3x= 39/:3
x=13
g)5x=-30/:5
x= -6
h)14+2x= -26 /-14
2x= 40/ :2
x= 20
i)25+5x=0/-25
5x= - 25/ x 5
x= - 5
j)12x= -8+4x
12x -4x= -8
8x= -8/:8
x= - 1
k)7x-6=x
7x-x=6
6x=6/: 6
x=1
l)-6+x=-x
x+x = 6
2x= 6/:2
x= 3
Ps : unde vezi ca am pus / x insemna inmultire!
Chiar si in ultima saptamana de scoala ai teme? =))))))