Question

subtract 4m-2m from the sum of 3m+4n+r and -6+7n-86​

Answer 1

Explanation:

=(3m+4n+r)+(-6+7n-86)-(4m-2m)

=3m+4n+r-6+7n-86-(4m-2m)

=3m+4n+7n+r-6-86-(4m-2m)

=3m+11n+r-92-2m

=m+11n+r-92