Word and opposite in Mathematics

Good day everyone!

DO YOU KNOW?
That, there's a branch of mathematics that's dealing with WORD & OPPOSITE as we're having it in other languages such as English, Yoruba, Hausa, Igbo and so on.
If YES, what and what? But if NO, please join us now to learn it so that you will be able to understand solutions to equations.

The list below 👇 comprises some of them with their illustrations. You will observe that cancellation laws are applied under illustration. You can verify each of them by using your calculator.