Question

Tommy has a stamps. His sister has 5 more stamps. Together they have 41 stamps. Record using algebra.

Answer 1

TOMMY HAS 18 STAMPS

Explanation:

x = number of stamps for Tommy

Write an equation

x + x + 5 = 41

2x +5 =41

2x = 36

x = 18

Answer 2

Where a=Tommy's stamps

41=a+(5+a)

41-5a=2a

36=2a

18=a

(check answer: Tommy has 18, his sister as 18+5=23. 18+23=41)