ułóż równania do rysunku i rozwiąż je a 3 b + 2 = 1 b + 8 b 4 k + 2 = 2 k + 6 c 5 k + 2 = 2 k + 11
a 3b+2=1b+8 / -1b 2b+2=8 /-2 b = 2b = 6 / : 2 b = 2
b 4k+2=2k+6 / -2k 2k+2=6 / - 2 k = 2k = 4 / :2 k = 2
c 5k+2=2k+11 /-2k 3k+2=11 /- 2 k = 3k = 9 / :3 k = 3
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a 3b+2=1b+8 / -1b 2b+2=8 /-2 b = 2b = 6 / : 2 b = 2
b 4k+2=2k+6 / -2k 2k+2=6 / - 2 k = 2k = 4 / :2 k = 2
c 5k+2=2k+11 /-2k 3k+2=11 /- 2 k = 3k = 9 / :3 k = 3