Question

If h + 12 = 22, then h = 10.

Answer 1

h+12 = 22

subtract 22 from both side

h+12-22 = 22-22

h-10= 0

ad 10 on both side

h-10+10 = 0+10

h=10

Answer 2

Answer:-

`h + 12 = 22 \: (put \: h = 10) \\ 10 + 12 = 22 \\ 22 = 22 \\ lhs = rhs`

i hope it helped you