Solve for u
u = -\frac{34}{7} = -4\frac{6}{7} \approx -4.857142857
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1=7\left(u+5\right)
Variable u cannot be equal to -5 since division by zero is not defined. Multiply both sides of the equation by u+5.
1=7u+35
Use the distributive property to multiply 7 by u+5.
7u+35=1
Swap sides so that all variable terms are on the left hand side.
7u=1-35
Subtract 35 from both sides.
7u=-34
Subtract 35 from 1 to get -34.
u=\frac{-34}{7}
Divide both sides by 7.
u=-\frac{34}{7}
Fraction \frac{-34}{7} can be rewritten as -\frac{34}{7} by extracting the negative sign.
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