Question

реши вровнение 86-(14+х)=21

Answer 1

14+x=86-21
14+x=65
x=65-14
x=51
86-(14+51)=21
21=21

Answer 2

86-(14+х)=21.
14+х=86-21
14+х=65
х=65-14
х=51
86-(14+51)=21
21=21