prove that 5(2+7) = 2×7+2×y
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Answer:
Step-by-step explanation:
5 (2+7) = (2 × 7) +2xy
5 × 9 = 14 + 2xy
45 = 14 + 2xy
2xy = 45 - 14
2xy = 31
xy = 15.5
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