Question
Add:
7x, -3x, 5x, -x, -2x
7x, -3x, 5x, -x, -2x
✓
Answer
7x + (-3x) + 5x + (-x) + (-2x)
= 7x - 3x + 5x - x - 2x
= 12x - 6x = 6x
= 7x - 3x + 5x - x - 2x
= 12x - 6x = 6x
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