Simplify 1/2x+7/12+3/5x-2/3

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence

Iwill give brainliest. give accurate answer, . suppose tommy walks from his home at (0, 0) to the mall at (0, 5), and then walks to a movie theater at (6, 5). after leaving the theater tommy walks to the store at (6, 0) before returning home. if each grid square represents one block, how many blocks does he walk?

Explain how the quotient of powers was used to simplify this expression.