Rozwiąż równania.
a) 8s - 1 = 9s - 6
b) -w - 12 = -3w - 22
c)-13m + 21 = -9m - 7
d) 15z + 24 = -5z -5
e)18 - 8y =5y - 8
f) -4n + 25 = 25 + 3n
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a) 8s - 1 = 9s - 6 |-8s
-1=s-6 |+6
s=5
b)-w - 12 = -3w - 22 |+3w
2w-12=-22|+12
2w=-10|:2
w=-5
c)-13m + 21 = -9m - 7 |+13m
21=4m-7 |+7
4m=28 |:4
m=7
d) 15z + 24 = -5z -5 |+5z
20z+24=-5 |-24
20z=-19 |:20
z=-
e)18 - 8y =5y - 8 |+8y
18=13y-8 |+8
13y=26 |:13
y=2
f) -4n + 25 = 25 + 3n |+4n
25=25+7n |-25
7n=0 |:7
n=0
a) 8s-1=9s-6
8s-9s=-6+1
-1s=-5
s=5
b)
-w-12=-3w-22
-w+3w=-22+12
2w=-10
w= -5
c)
-13m+21=-9m-7
-13m+9m=-7-21
-4m=-28
m=7
d)
15z+24=-5z-5
15z+5z=-5-24
30z=-29
z=29/30
e) 18-8y=5y-8
-8y-5y=-8-18
-13y=-26
y= 2
f) -4n+25=25+3n
-7n=0
n=0