0.4x+0.3=0.7x-2.1

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Solution for 0.4x+0.3=0.7x-2.1 equation:



0.4x+0.3=0.7x-2.1
We move all terms to the left:
0.4x+0.3-(0.7x-2.1)=0
We get rid of parentheses
0.4x-0.7x+2.1+0.3=0
We add all the numbers together, and all the variables
-0.3x+2.4=0
We move all terms containing x to the left, all other terms to the right
-0.3x=-2.4
x=-2.4/-0.3
x=+8

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