3.5x+x=4

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Solution for 3.5x+x=4 equation: 



3.5x+x=4

We move all terms to the left:

3.5x+x-(4)=0

We add all the numbers together, and all the variables

4.5x-4=0

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

4.5x=4

x=4/4.5

x=1/1.125

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