51z-90=420

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Solution for 51z-90=420 equation: 



51z-90=420

We move all terms to the left:

51z-90-(420)=0

We add all the numbers together, and all the variables

51z-510=0

We move all terms containing z to the left, all other terms to the right

51z=510

z=510/51

z=10

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