UPSKILL MATH PLUS

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Calculate the value of \(a\) if the angles \(∠M = (\)4\(a+\)10\()°\) and \(N = (a+\)15\()°\).
 
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The value of \(a\) is .
 
[Note:  Insert the value by rounding off it to maximum of \(2\) decimal places]