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2x=11-5
2x=6/:2
x=3
spr 2*3+5=11
b)5z-3z=8
2z=8/:2
z=4
spr 5*4=3*4+8
20=20
c)3x-5x=1
-2x=1/:(-2)
x=-0,5
spr 3*(-0,5)-1=5*-0,5
-2,5=-2,5
d)y+y=9+3
2y=12/:2
y=6
spr 6-3=9-6
3=3
x=3
2*3+5=11
b)5z=3z+8
z=4
5*4=3*4+8
c)3x-1=5x
x=1/8
3x+5x=1
8x=1 /8
d)y-3=9-y
y=6
6-3=9-6