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Question
Add: 7xy + 5yz – 3zx, 4yz + 9zx – 4y, –3xz + 5x – 2xy.
Sum
Solution
7xy | + | 5yz | - | 3zx | |||||
+ | 4yz | + | 9zx | - | 4y | ||||
+ | -2xy | - | 3zx | + | 5x | ||||
5xy | + | 9yz | + | 3zx | + | 5x | - | 4y |
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