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The expression 2(a + b) = -8.1 for certain value of a and b. Find the value of the following expression for the same value of a and b: 3(a+b)

1 Answer

4 votes

Answer:

-12.15

Explanation:

2(a+b)=-8.1

a+b=-4.05

3(a+b)=3(-4.05)

3(a+b)=-12.15

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