How do we combine like terms for this {5n+6 + (-7n) }5n+6 + (-7n)

How many triangles can be formed from two given angle measures and the length of their included side?

Use substitution to solve the systems of equations y = - 3x + 11 3x - 5y = 71

Expand each of the linear expression below using the distributive property, showing all work and simplifying your answer completely - 3 (-6b+5)

Write - 42/9 as a mixed number in reduced form

What is the answer to the equation - 3 (a+6) for distributive property

Jen solves the equation 100-1/2x=92 to determine the number of questions, x, she answered incorrectly on a test. She began by subtracting 100 from both sides, then multiplying both sides by - 2. Which best describes the accuracy of jen's work?

2x + y = 20 6x - 5 y = 12

What is the greatest common factor of 96 48 84

The perimeter of a rectangle is 100 yd. if its width is four times its length, what is the area?

Find the sum 45+46+47+48 ... + 127+128