30=x+4.2

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Solution for 30=x+4.2 equation:



30=x+4.2
We move all terms to the left:
30-(x+4.2)=0
We get rid of parentheses
-x-4.2+30=0
We add all the numbers together, and all the variables
-1x+25.8=0
We move all terms containing x to the left, all other terms to the right
-x=-25.8
x=-25.8/-1
x=25+0.8/1

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