common terms is to be added or subtracted based on the logical between them

(-2*m + m) + (5*n -14*n) - 3

- m + (-9*n) - 3 ( therefore the highest value is having a negative sign after calculating we get the highest value sign to the result i.e. 5n - 14n = -9n , -2m + m = - m)

- m - 9*n -3 ( + * - = - , i.e. + ( -9n) = -9n))

hence the simplified result is given as,

-m - 9*n - 3

May 16th, 2015

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