Rozwiąż równanie i sprawdź: 3 1/2 *a-5= 6 1/2
3 1/2a -5 = 6 1/2
3 1/2a = 6 1/2 +5
3 1/2a = 11 1/2
7/2a = 23/2|: 7/2
a= 23/7*2/7 = 23/7 = 3 2/7
Spr.:
7/2 * 23/7 - 5= 6 1/2
23/2 - 5 = 6 1/2
11,5 -5 = 6 1/2
6 1/2 = 6 1/2
L=P
3 1/2 *a-5= 6 1/2 /+5
3 1/2 *a= 11 1/2
3 1/2 *a= 11 1/2 /:3 1/2
a=11 1/2 : 3 1/2
a=23/2 * 2/7
a=3 2/7
spr.
(3 1/2 *3 2/7)-5= 6 1/2 /+5
7/2 * 23/7 = 11 1/2
23/2=11 1/2
11 1/2=11 1/2
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3 1/2a -5 = 6 1/2
3 1/2a = 6 1/2 +5
3 1/2a = 11 1/2
7/2a = 23/2|: 7/2
a= 23/7*2/7 = 23/7 = 3 2/7
Spr.:
7/2 * 23/7 - 5= 6 1/2
23/2 - 5 = 6 1/2
11,5 -5 = 6 1/2
6 1/2 = 6 1/2
L=P
3 1/2 *a-5= 6 1/2 /+5
3 1/2 *a= 11 1/2
3 1/2 *a= 11 1/2 /:3 1/2
a=11 1/2 : 3 1/2
a=23/2 * 2/7
a=3 2/7
spr.
(3 1/2 *3 2/7)-5= 6 1/2 /+5
7/2 * 23/7 = 11 1/2
23/2=11 1/2
11 1/2=11 1/2
L=P