James is 13 years older than one half of Abby's age. Monica is one year younger than four times Abby's age. If James and Monica are the same age, how old are they

Question

Mathematics

Zion Pena

2 June, 22:11

James is 13 years older than one half of Abby's age. Monica is one year younger than four times Abby's age. If James and Monica are the same age, how old are they

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Answers (2)

Know the Answer?

Elliana Guzman · Answer 1

James and Monica are 15 years old and Abby is 4 years old.

Rodney Buck · Answer 2

J = 13+0.5A

M = 4A - 1

Since J = M you can just say

X = 13+0.5A

X = 4A - 1

Merge the equations by getting rid of one of the variables and solve for the remaining variable