40x-100=30x

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Solution for 40x-100=30x equation: 



40x-100=30x

We move all terms to the left:

40x-100-(30x)=0

We add all the numbers together, and all the variables

10x-100=0

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

10x=100

x=100/10

x=10

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