SOLUTION: 7 + x = 2x

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Question 547018: 7 + x = 2x
Answer by Maths68(1474) About Me  (Show Source):
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7%2Bx=2x
Subtract x from both sides of the equation
7%2Bx-x=2x-x
7%2Bcross%28x%29-cross%28x%29=x
7=x
x=7
Check
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Put the value of x in the equation
7%2Bx=2x
7%2B7=2%287%29
14=14