7x+14x=100

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Solution for 7x+14x=100 equation: 



7x+14x=100

We move all terms to the left:

7x+14x-(100)=0

We add all the numbers together, and all the variables

21x-100=0

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

21x=100

x=100/21

x=4+16/21

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