# Simplify the following expression. z - 2z + 4z + 6

## Question:

Simplify the following expression.

{eq}z - 2z + 4z + 6 {/eq}

## Evaluating Algebraic Expressions

Algebraic expressions are mathematical sentences that are made up of variables, constants and mathematical operations. When evaluating them, the mathematical operations are followed and the results are the answers.

In the algebraic expression below, to simplify it the operations have to be followed:

{eq}z-2z+4z + 6 {/eq}

{eq}(z-2z)+4z + 6 {/eq}

{eq}( -z +4z) + 6 {/eq}

{eq}3z + 6 {/eq}

Thus, the expression {eq}z-2z+4z + 6 {/eq} when simplified is {eq}3z + 6 {/eq}.