SOLUTION: translate and solve: twice the sum of a number and eleven is seven less than the number
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Question 982607
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translate and solve: twice the sum of a number and eleven is seven less than the number
Answer by
ikleyn(52776)
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twice the sum of a number and eleven is seven less than the number
2*(x + 11) = x - 7.
2x + 22 = x - 7,
2x - x = -7 - 22,
x = -29.
Check
. 2*(x+11) = 2*(-29 + 11) = 2*(-18) = -36.
x - 7 = -29 - 7 = -36.