Mathematics, 31.12.2019 15:31 Kcloughley

Consider the sequence of steps to solve the equation: 3(x ? 4) + 5x = 9x ? 36 given ? 3(x ? 4) + 5x = 9x ? 36 step 1 ? 3x ? 12 + 5x = 9x ? 36 step 2 ? 3x + 5x ? 12 = 9x ? 36 step 3 ? 8x ? 12 = 9x ? 36 step 4 ? 8x ? 8x ? 12 = 9x ? 8x ? 36 step 5 ? 0 ? 12 = x ? 36 step 6 ? ? 12 = x ? 36 step 7 ? ? 12 + 36 = x ? 36 + 36 step 8 ? 24 = x + 0 step 9 ? 24 = x which property yields step 1?

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Consider the sequence of steps to solve the equation: 3(x ? 4) + 5x = 9x ? 36 given ? 3(x ? 4)...

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