Example 3
Completion requirements
Example 3
Step 1
Determine the restrictions on the variable x.
The value under the square root sign cannot be negative.
Step 2
To 'undo' the square root, square both sides of the equation.
Step 3
To 'undo' the 14 multiplied by x, divide both sides of the equation by 14.
Step 4
Verify the solution 
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Left side =
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Right side =
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Left side = Right side
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The verification confirms the solution value of 
for x in the equation .