5x+2x=210

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Solution for 5x+2x=210 equation: 



5x+2x=210

We move all terms to the left:

5x+2x-(210)=0

We add all the numbers together, and all the variables

7x-210=0

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

7x=210

x=210/7

x=30

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