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The number is -14/23 or -0.6087.
Let x = the number
Equation: 1/2 * x = 12 * x + 7
multiplying the equation by 2
2(1/2x) = (12x + 7)2
x = 24x + 14
x - 24x = 14
-23x = 14
x = -14/23 or -0.6087
check:
1/2 * x = 12 * x + 7
1/2 (-14/23) = 12 (-14/23) + 7
-14/46 = -168/23 + 161/23
-7/23 = -7/23
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∙ 11y ago
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