30x+40=40x

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Solution for 30x+40=40x equation:



30x+40=40x
We move all terms to the left:
30x+40-(40x)=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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