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10-03-2021
Mathematics

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9. Simplify the expression: 4a + 8 - 2a – 4 + 7b.

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10-03-2021

Answer:

2a + 7b + 4

Step-by-step explanation:

4a + 8 - 2a - 4 + 7b

Group like terms

4a - 2a + 7b + 8 - 4

Add similar elements (4a - 2a)

2a + 7b + 8 - 4

Add/Subtract (8 - 4)

2a + 7b + 4

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