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0.3x + 0.4=0
We simplify the equation to the form, which is simple to understand
0.3x + 0.4=0
We move all terms containing x to the left and all other terms to the right.
+ 0.3x=0-0.4
We simplify left and right side of the equation.
+ 0.3x=-0.4
We divide both sides of the equation by 0.3 to get x.
x=-1.33333333333
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