Rozwiąż równanie i sprawdź:
3 1/2 *a-5= 6 1/2
3 1/2a=6 1/2+5
3 1/2a=11 1/2/:3 1/2
a=23/2 : 7/2
a=23/2 * 2/7
a=46/14
a=3 4/14
a=3 2/7
spr.
3 1/2*a-5=6 1/2
3 1/2 * 3 2/7-5=6 1/2
7/2*237-5=6 1/2
161/14-5=6 1/2
11 1/2-5=6 1/2
6 1/2= 6 1/2
L=P
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3 1/2 *a-5= 6 1/2
3 1/2a=6 1/2+5
3 1/2a=11 1/2/:3 1/2
a=23/2 : 7/2
a=23/2 * 2/7
a=46/14
a=3 4/14
a=3 2/7
spr.
3 1/2*a-5=6 1/2
3 1/2 * 3 2/7-5=6 1/2
7/2*237-5=6 1/2
161/14-5=6 1/2
11 1/2-5=6 1/2
6 1/2= 6 1/2
L=P