Simplify (7x) - (-2x). 5x -5x O9x 0-9x
Mathematics · Middle School · Thu Feb 04 2021
Answered on
Given the equation:
(7x) - (-2x)
Simplify
Solution:
Before simplifying, we must simply understand first the concept of multiplying, dividing, or introducing signs. If similar signs are introduced, multiplied or divided to one another, the answer will become positive, hence if the signs are opposite to one another, then the answer will become negative. In our case we have a negative sign, introced to a negative sign therefore the resulting sign will be positive.
= (7x) - (-2x)
= 7x + 2x
= 9x
Final answer:
= 9x