4+x+x=7*5

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Solution for 4+x+x=7*5 equation: 



4+x+x=7*5

We move all terms to the left:

4+x+x-(7*5)=0

We add all the numbers together, and all the variables

x+x+4-35=0

We add all the numbers together, and all the variables

2x-31=0

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

2x=31

x=31/2

x=15+1/2

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