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a) 4x-6+12=x-3x-6
4x+6=2x-6
4x+2x=-6-6
6x=-12/:6
x=2
b) 6-4x+1=3x-3
-4x+7=3x-3
-4x-3x=-3-7
-7x=-10/:-7
x=-10/7=jeden i 3siódme
c) 24y-16-7y=60-15y+13y
17y-16=60-2y
17y+2y=60+16
19y=76/:19
y=4
d)5x-2-3x+0,6=6,4x-9,6
2x-1,4=6,4x-9,6
2x-6,4x=-9,6+1,4
-4,4x=-8,2/:(-4,4)
x=1,86