Combine Like Terms D12Efc

1. The problem is to simplify the expression by combining like terms. 2. Like terms are terms that have the same variable raised to the same power. 3. To combine like terms, add or subtract their coefficients while keeping the variable part unchanged. 4. For example, in the expression $3x + 5x - 2y + 4y$, combine $3x$ and $5x$ to get $8x$, and combine $-2y$ and $4y$ to get $2y$. 5. The simplified expression is $8x + 2y$. This process helps to make expressions simpler and easier to work with.