Question

37 + x = 99

20 + x = 35

13 - x = 59

19 + x = 53
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Answer 1

Explicación paso a paso:

• 37 + x = 99

x = 99 - 37

x = 62

• 20 + x = 35

x = 35 - 20

x = 15

• 13 - x = 59

x = 59 + 13

x = 72

• 19 + x = 53

x = 53 - 19

x = 34