Solve for z
z=1
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z\times \frac{7}{\frac{1}{4}}=28
Variable z cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by z.
z\times 7\times 4=28
Divide 7 by \frac{1}{4} by multiplying 7 by the reciprocal of \frac{1}{4}.
z\times 28=28
Multiply 7 and 4 to get 28.
z=\frac{28}{28}
Divide both sides by 28.
z=1
Divide 28 by 28 to get 1.
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