Question

реши уравнения: 5×Х=50+25. Х÷4=7×2; 42÷Х= 56÷8

Answer 1

5×Х=50+25
5Х=75
Х=75÷5
Х=15
Х÷4=7×2
Х÷4=14
Х=14×4
Х=56
42÷Х=56÷8
42÷Х=7
Х=42÷7
Х=6