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solniwko [45]
3 years ago
13

What is 5a-(-2a)+9 simplified

Mathematics
2 answers:
Verdich [7]3 years ago
3 0

5a - (-2a) + 9

When you subtract a negative number, you can replace the 'double negative' with a positive, or addition. So, instead of subtracting -2a, you can add 2a.

5a + 2a + 9   Combine like-terms

7a + 9

Nesterboy [21]3 years ago
3 0
Negative times negative is positive so it makes it 7a +9 since it’s out of the parentheses
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------------------

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Read 2 more answers
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