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26-01-2020
Mathematics

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If 13 is added to a number and the sum is doubled the result is -10 less than the number

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26-01-2020

Equation for solving: (13+x)2= -10-x

Step one: 26+2x=-10-x

step two: 26+3x=-10

step three: 3x=-36

answer: -12

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