34+х 78-25=53 х+3>2 16+d=29 х+6=54 х-19

Question

34+х 78-25=53 х+3>2

16+d=29 х+6=54 х-19

Answer 1

16+d=29 ×+6=54
d=29-16 ×=54-6
d=13 ×=48
____ ____
16+13=29 48+6=54
29=29 54=54