Amy is 9 years older than her brother john. their combined age is 23. write an expression to represent johns age (use x)

Question

Medina

Mathematics

1 June, 05:32

Amy is 9 years older than her brother john. their combined age is 23. write an expression to represent johns age (use x)

+3

Answers (1)

Know the Answer?

Joshua Huffman · Answer 1

Let x the age of John

Amy's age = x + 9

from question, we get,

John's age + Amy's age = 23

x + (x+9) = 23

=> x + x + 9 = 23

=> 2x = 23 - 9

=> x = 14/2

=> x = 7