5x+2x=123

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Solution for 5x+2x=123 equation: 



5x+2x=123

We move all terms to the left:

5x+2x-(123)=0

We add all the numbers together, and all the variables

7x-123=0

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

7x=123

x=123/7

x=17+4/7

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