Solve for z
z=1
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18=18z
Multiply both sides of the equation by 72, the least common multiple of 72,4.
18z=18
Swap sides so that all variable terms are on the left hand side.
z=\frac{18}{18}
Divide both sides by 18.
z=1
Divide 18 by 18 to get 1.
Examples
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Matrix
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Simultaneous equation
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Limits
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