Simplify these expressions and find their values if $x = 3, a = - 1, b = - 2$
$10 - 3 b - 4 - 5 b$

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Solution

Simplifying algebric expression:
Consider $10 - 3 b - 4 - 5 b$
Put $x = 3, a = - 1, b = - 2$
$10 - 3 b - 4 - 5 b = 10 - 3 (- 2) - 4 - 5 (- 2) = 10 + 6 - 4 + 10 = 22$
Hence, the value of $10 - 3 b - 4 - 5 b$ is $22$

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