Evaluate the expression 4b - 3b + 2 when b = 5.

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Study for the GMAS 6th Grade Mathematics Test. Prepare with flashcards and multiple choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

Evaluate the expression 4b - 3b + 2 when b = 5.

Explanation:
When you see 4b - 3b + 2, start by combining like terms with b. 4b and -3b combine to (4 - 3)b = b, so the expression simplifies to b + 2. Then substitute b = 5: 5 + 2 = 7. So the value is 7. (You can also plug in first: 4(5) - 3(5) + 2 = 20 - 15 + 2 = 7.)

When you see 4b - 3b + 2, start by combining like terms with b. 4b and -3b combine to (4 - 3)b = b, so the expression simplifies to b + 2. Then substitute b = 5: 5 + 2 = 7. So the value is 7. (You can also plug in first: 4(5) - 3(5) + 2 = 20 - 15 + 2 = 7.)

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