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Worksheet Worksheet 3
1. Simplify the expression \((3a + 2b) + 2 (-a + 3b)\) using a complete presentation. Show the distribution step, rearrangement step, the grouping step, and the arithmetic step.
2. Simplify the expression \((-6x + 4y) - (-6x - 4y)\) using a complete presentation. Show the rearrangement step, the grouping step, and the arithmetic step.
3. Simplify the expression \((7x - 5) - (3x - 4)\text{.}\)
Although it’s important to be able to explain every step carefully, in practice we don’t always do that. Your instructor may or may not have specific instructions for what they are looking for. Just remember that the main thing is that your work must be legible and understandable to someone else.
