Solve for x
x=\frac{1}{10}=0.1
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x\times 3+7x-1=0
Variable x cannot be equal to any of the values 0,\frac{1}{7} since division by zero is not defined. Multiply both sides of the equation by x\left(7x-1\right), the least common multiple of 7x-1,x.
10x-1=0
Combine x\times 3 and 7x to get 10x.
10x=1
Add 1 to both sides. Anything plus zero gives itself.
x=\frac{1}{10}
Divide both sides by 10.
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