5x-10+15x+30=420

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Solution for 5x-10+15x+30=420 equation: 



5x-10+15x+30=420

We move all terms to the left:

5x-10+15x+30-(420)=0

We add all the numbers together, and all the variables

20x-400=0

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

20x=400

x=400/20

x=20

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