Minus 3 upon 7 + 2 upon 4 into 3 upon 5 minus 2 upon 4 into 1 upon 5
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Answer:
(-3) + 2×3 - 2×1
7 4×5 4×5
-3 + 3 - 1
7 10 10
-3 + 2
7 10
-3 + 1
7 5
-15+7
35
-8
35
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