Question

margaret is twice susan's age minus 21. susan, in the other hand, is three times margaret's age minus 177. how old is margaret?

Answer 1

Well if I added this up correctly Margret is 38. 

Answer 2

Margaret is 75 year old.

What is equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

According to question, margaret is twice susan's age minus 21. susan, in the other hand, is three times margaret's age minus 177.

We have to find how old is margaret.

Let Margaret age be m and susan age be s.

We will get the following equations:

$m=2s-21$       and   $s=3m-177$

By solving both the equation, we get

$s=48$   and $m=75$

Hence, we can conclude that Margaret is 75 year old.

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