40-4x=30

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Solution for 40-4x=30 equation: 



40-4x=30

We move all terms to the left:

40-4x-(30)=0

We add all the numbers together, and all the variables

-4x+10=0

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

-4x=-10

x=-10/-4

x=2+1/2

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