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put this solution on YOUR website!"twelve divided by the sum of a number and 2 equals the quotient of 4 and the difference of the number and 2. Find the number?"
x = the number
12/(x + 2) = 4/(x - 2)
12(x - 2) = 4(x + 2) {cross-multiplied, since it was a proportion}
12x - 24 = 4x + 8 {used distributive property}
12x = 4x + 32 {added 24 to both sides}
8x = 32 {subtracted 4x from both sides}
x = 4 {divided both sides by 8}
the number is 4
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