30x-20x=40

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Solution for 30x-20x=40 equation:



30x-20x=40
We move all terms to the left:
30x-20x-(40)=0
We add all the numbers together, and all the variables
10x-40=0
We move all terms containing x to the left, all other terms to the right
10x=40
x=40/10
x=4

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