4.2x+x=123

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Solution for 4.2x+x=123 equation: 



4.2x+x=123

We move all terms to the left:

4.2x+x-(123)=0

We add all the numbers together, and all the variables

5.2x-123=0

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

5.2x=123

x=123/5.2

x=23+2.4285714285714/3.7142857142857

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