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algebra addition
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Algebra Addition
| Rules for Algebra Addition |
Examples |
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If a and b are both positive, then a + b = |a| + |b|
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3 + 7 = 10 |
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If a and b are both negative, then a + b = -(|a| + |b|)
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-6 + (-2) = -(6 + 2) = -8 |
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If a is positive and b is negative and a has the greater absolute value, then a + b = |a| - |b|
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8 + (-5) = 8 - 5 = 3 |
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If a is positive and b is negative and b has the greater absolute value, then a + b = -(|b| - |a|)
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4 + (-9) = -(9 - 4) = -5
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If a and b are opposites, then a + b = 0
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2 + (-2) = 0 |
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