7x6-m=18 afla numarul necunoscut

Răspuns :


[tex](7 \times 6) - m = 18 \\ \\ 42 - m = 18 \\ \\ m = 42 - 18 \\ \\ m = 24 \\ \\ verificare \\ \\ (7 \times 6) - 24 = 18 \\ \\ 42 - 24 = 18 \\ \\ 18 = 18[/tex]
7×6-m=18
42-m=18
m=42-18
m=24