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Reminder: variables are on both sides
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Reminder: variables are on both sides

Reminder: variables are on both sides-example-1
User Juangcg
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1 Answer

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Start by multiplying both sides of the equation by 7 (the common denominator).


7 \left((6z)/(7) -27 \right)=7\left((21-4z)/(7) \right) \\ 6z-189=21-4z

Add 4z to both sides.


10z-189=21

Add 189.


10z=210 \\ z=21
User Paul Morrison
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