AB = 1/2
BC = -2
CD = 1/2
DA = -2
4 pupils bc 2*2=4..................................................................................................................................................................................................................................................................
6 rows are empty.
112/7 = 16 rows
70/7 = 10 rows used.
Answer:
8x-2y
Step-by-step explanation:
3x4y+5x+2y
Simplify
1 Combine like terms
3x4y+5x+2y
8x-4y+2y
2 Combine like terms
8x-4y+2y
8x-2y
Solution
8x-2y
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