20x+78=90

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Solution for 20x+78=90 equation: 



20x+78=90

We move all terms to the left:

20x+78-(90)=0

We add all the numbers together, and all the variables

20x-12=0

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

20x=12

x=12/20

x=3/5

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