10x+3x=20+1

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Solution for 10x+3x=20+1 equation: 



10x+3x=20+1

We move all terms to the left:

10x+3x-(20+1)=0

We add all the numbers together, and all the variables

10x+3x-21=0

We add all the numbers together, and all the variables

13x-21=0

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

13x=21

x=21/13

x=1+8/13

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