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x- 1 bok
x-3 2 bok
2x+2(x-3)=22
2x+2x-6=22
4x=22+6
4x=28
x=7 1 bok
2 bok=7-3
2 bok=4
x+3 - II bok
22=2x+2x+6
-4x=-22+6
-4x=-16 |-4
x=4
2x+2(x-3)=22cm
2x+2x-6=22cm
4x=28cm/:4
x=7
a=7
b=7-3=4