can you explain how to add negatives

like -y + x or y + -x

1 answer

Certainly! Adding negative numbers can be understood in a straightforward way. Here's a breakdown of how to add expressions that include negatives, like \(-y + x\) or \(y + -x\):

Expression 1: \(-y + x\)

  1. Identify the terms: In this expression, we have two terms: \(-y\) and \(x\).

  2. Combine like terms: Since \(x\) and \(-y\) are not like terms, you cannot combine them further. Therefore, you just write the expression together: \[ -y + x = x - y \]

Expression 2: \(y + -x\)

  1. Identify the terms: Here, the terms are \(y\) and \(-x\).

  2. Combine like terms: Similar to the previous expression, \(y\) and \(-x\) are also not like terms. So, you write it together: \[ y + -x = y - x \]

General Notes on Adding Negatives

  • When you see \(-y\) or \(-x\), think of it as the opposite of that variable. For example, \(-y\) means you are taking away \(y\).

  • You can also think of addition involving negatives as moving along a number line. For example, adding \(-1\) is like moving left, and adding \(1\) is moving right.

Summary:

  • \(-y + x\) simplifies to \(x - y\).
  • \(y + -x\) simplifies to \(y - x\).

If you have specific examples or further expressions you'd like to work through, feel free to ask!