how should a 7th grader solve (a+b) 12+3=5
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(12 • (a + b) + 3) - 5 = 0
12a + 12b - 2 = 2 • (6a + 6b - 1)
2 • (6a + 6b - 1) = 0
Solve : 2 = 0
(12 • (a + b) + 3) - 5 = 0
12a + 12b - 2 = 2 • (6a + 6b - 1)
2 • (6a + 6b - 1) = 0
Solve : 2 = 0
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