Question

My sister needs help:
What is...
-4+7(1-3m)= ?
-5n+3(6+7n)= ?

Answer 1

You first need to distribute the term outside of the parenthesis to the terms inside of the parenthesis.

\(x(a + b) = x(a) + x(b)\)

Similarly, for question 1, what you do is:
\(-4 + 7(1 - 3m) = -4 + 7(1) + 7(-3m)\)
\(4 + 7 - 21m\)
combine the like terms to get \(11 - 21m\).

Use the same principle for the second question.

Answer 2

Thanks @calculusxy

Answer 3

You're welcome :)