Х+9=4; 21+х=-7; Х+(-15)=-22

Question

Х+9=4;
21+х=-7;
Х+(-15)=-22

Answer 1

Х=4-9=-5
х=-7-21=-28
х=-22+15=-7

Answer 2

1)x+9=4
x=4-9
x=-5
2)21+x=-7
x=-7-21
x=-28
3)x+(-15)=-22
x=-22+15
x=-7