Addition and Subtraction of Algebraic Expressions
The operation of addition and subtraction can be performed on terms with similar variable. Add or subtract the coefficients on similar variable
Example:
\(10x^2 + 5x - 3x^2 + 4x\)
\(10x^2 - 3x^2 + 5x + 4x\)
\((10 - 3)x^2 + (5 + 4)x\)
\(7x^2 + 9x\)