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Simplify combining like terms:$21b-32 + 7b-20b$
Given :
The given expression is $21b-32 + 7b-20b$.
To do :
We have to simplify the given expression.
Solution :
Simplifying means to make simpler. Here, we can simplify by adding or subtracting like terms.
$21b-32+7b-20b$
21b, 7b and $-$20b are like terms.
Therefore,
$21b-32+7b-20b = b(21+7-20)-32 = (28-20)b-32 = 8b-32$.
Therefore, the simplified form of $21b-32 + 7b-20b$ is $8b-32$.
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