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Simplify 5-3(a-2)-(a+21)

Mathematics

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Answer

-4a - 10

Step-by-step solution

2 steps

Here's how to solve the problem:

Simplify 5−3(a−2)−(a+21)5 - 3(a - 2) - (a + 21)

  1. Distribute the constants and signs into the parentheses.

    5−3(a−2)−(a+21)=5−3a+6−a−215 - 3(a - 2) - (a + 21) = 5 - 3a + 6 - a - 21

  2. Combine like terms.

    5−3a+6−a−21=(−3a−a)+(5+6−21)5 - 3a + 6 - a - 21 = (-3a - a) + (5 + 6 - 21) =−4a+(11−21)= -4a + (11 - 21) =−4a−10= -4a - 10

    The simplified expression is −4a−10-4a - 10.

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