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a).
6x-9=2x+61
6x-2x=61+9
4x=70/:4
x=17 i 1/2
b).
7y-46=3y-6
7y-3y= -6+46
4y=40 /:4
y=10
2).
a).
-1/4 m =7 /:(-1/4)
m=7·(-4)
m= -28
b).
1/8 n= -1 /: 1/
n= -1·8
n= -8
c).
-1/9 p=4 /:(-1/9)
p=4·(-9)
p= -36
3).
a).
-x+4=0
-x= -4 /·(-1)
x=4
b).
-p+1= -2
-p= -2-1
-p= -3 /·(-1)
p=3
c).
-s+3= -3
-s= -3-3
-s= -6 /·(-1)
s=6