Question

suma a 7 nr consecutive este 70 . care sunt nr

Answer 1

$a + a + 1 + a + 2 + a + 3 + a + 4 + a + 5 + a + 6 = 70$

$a + a + a + a + a + a + a = 70 - 1 - 2 - 3 - 4 - 5 - 6$

$7a = 49 \: | \div 7$

$a = 7$

$a + 1 = 7 + 1 = 8$

$a + 2 = 7 + 2 = 9$

$a + 3 = 7 + 3 = 10$

$a + 4 = 7 + 4 = 11$

$a + 5 = 7 + 5 = 12$

$a + 6 = 7 + 6 = 13$