# Answer to Question #17716 in Algebra for alize

Question #17716

susan is 5 years younger than her sister. the sum of their age is 51. define the variable

Expert's answer

Let age of Susan is x. Then age of sister is x+5. We can construct the following equation:

x+(x+5)=51

2x=51-5=46

x=23

x+(x+5)=51

2x=51-5=46

x=23

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