volume_mute

Simplify the following algebraic expression

publish date2023/05/27 10:16:00 GMT+10

Write numbers first

35(\(\frac{4}{5}\)x)

volume_mute

Correct Answer

$27b$

Explanation

  • Use the associative property of multiplication to regroup the factors
    • 35(\(\frac{4}{5}x\)) = (\(\frac{35}{1}\) • \(\frac{4}{5}\))x
  • Factor 35 as 5 • 7 and then remove the common factor 5
    • = (\(\require{cancel} \frac{\cancel{5}^1 \cdot  7 \cdot  4}{1 \cdot \cancel{5}_1}\))x
  • Do the multiplication and then simplify: \(\frac{28}{1}\) = 28
    • = 28x

Reference

Mathematics for college students


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