Rozwiąż równanie: 15z + 3(1-2z)=9z
6-4(y-3) = 22
2x+2=4(x-8 )
15z+3-6z=9z
15z-6z-9z=-3
0=-3
6-4y-12=22
-4y=22-6+12
-4y=28|:(-4)
y=-7
2x+2=4x-32
2x-4x=-32-2
-2x=-34|:(-2)
x=17
a) 15z+3(1-2z)=9z
b) 6-4(y-3) = 22
6-4y+12=22
6-22+12=4y
-4=4y / :4
-1=y
c) 2x+2=4(x-8 )
-2x=-34 / :-2
x= 17
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15z+3-6z=9z
15z-6z-9z=-3
0=-3
6-4y-12=22
-4y=22-6+12
-4y=28|:(-4)
y=-7
2x+2=4x-32
2x-4x=-32-2
-2x=-34|:(-2)
x=17
a) 15z+3(1-2z)=9z
15z+3-6z=9z
15z-6z-9z=-3
0=-3
b) 6-4(y-3) = 22
6-4y+12=22
6-22+12=4y
-4=4y / :4
-1=y
c) 2x+2=4(x-8 )
2x+2=4x-32
2x-4x=-32-2
-2x=-34 / :-2
x= 17