Review simplifying and expanding linear expressions.
3n + 7 - n - 3
(n - 4) + (3n + 9)
(-2.1m - 5) + (3m - 7)
-9(-3n - 6.2 + 2n)
Factor out coefficient:
Factor out the GCF: 9 - 15x
The expression 15x + 11 represents the Perimeter of a trapezoid. A trapezoid is 4 sides:
(2x + 3); (3x + 4); (4x - 1); and ? Use the information given to find the ? side.
9 - 3(5 - 2n) + 9n
7-3(2x - 5)