Hey dam naj : *
11.Rozwiąż rownania
a) -5x-5=5
b)1/2x+4=-6
c)0,6=3/4x=- 1/3
d)3x-4=5x+2
e)7-2x=7x-2
f)2/3(6x-9)=12
g)1/10(25x-40)+2=3/4(8x+12)-19
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a) -5x=5+5
-5x=10|:(-5)
x=-2
b)1/2x=6-4
1/2x=2|1/2
x=1
c)??
d)3x-5x=2+4
-2x=6|:(-2)
x=-3
e)-2x-7x= -2-7
-9x=-9|(-9)
x=0
f)2/3(6x-9)=12
4x-6=12
4x=12+6
4x=18|4
x=4,5
g)1/10(25x-40)+2=3/4(8x+12)-19
2.5x-4+2=6x+9-19
2.5x-6x=9-19+4-2
3.5x=-21+13
3.5x=-8|(3,5)
x=-8/3,5
co do ostaniego nie jestem pewien
a) -5x-5=5
-5x=5+5
-5x=10 |:(-5)
x=-2
b)½x+4=-6
½x=-6-4
½x=-10 |:½
x=-20
c)0,6+¾x=-1/3
¾x=-⅓-0,6
¾x=-⅓-6/10
¾x=-10/30-18/30
¾x=-28/30 |:¾
x=-28/30*4/3
x=-112/90
x=-1i 22/90
x=-1i11/45
d) 3x-4=5x+2
3x-5x=2+4
-2x=6 |:(-2)
x=-3
e) 7-2x=7x-2
-2x-7x=-2-7
-9x=-9 |:(-9)
x=1
f)⅔(6x-9)=12
⅔*6x-⅔*9=12
4x-6=12
4x=12+6
4x=18 |:4
x=4,5