Question

Решите пжл уравнения 3 кл)

Answer 1

12*х+51=99
12*х=99-51
12*х=48
Х=4812
Х=4

100-х*14=58
Х*14=100-58
Х*14=42
Х=42/14
Х=3

Answer 2

12*x+51=99                                                                                         12*x=99-51

12*x=48

x=48:12

x=4