Question

Раскрыть скобки и привести подобные слагаемые 3(3a-b)-2(a+b)

Answer 1

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Answer 2

Calculating 3(3a-b)-2(a+b)

To calculate the expression 3(3a-b)-2(a+b), we can start by distributing the coefficients to the terms inside the parentheses and then simplifying the expression.

First, distribute the 3 to 3a and -b, and the -2 to a and b:

3(3a-b)-2(a+b) = 9a - 3b - 2a - 2b

Now, combine like terms:

9a - 3b - 2a - 2b = (9a - 2a) + (-3b - 2b) = 7a - 5b

So, the simplified form of the expression 3(3a-b)-2(a+b) is 7a - 5b. This result is obtained by distributing the coefficients and then combining like terms.

Therefore, the expression 3(3a-b)-2(a+b) simplifies to 7a - 5b.