Solve for b
b=2
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b\times 7+12=13b
Variable b cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by b.
b\times 7+12-13b=0
Subtract 13b from both sides.
-6b+12=0
Combine b\times 7 and -13b to get -6b.
-6b=-12
Subtract 12 from both sides. Anything subtracted from zero gives its negation.
b=\frac{-12}{-6}
Divide both sides by -6.
b=2
Divide -12 by -6 to get 2.
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