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0.8x+9.4=4.2
We simplify the equation to the form, which is simple to understand
0.8x+9.4=4.2
We move all terms containing x to the left and all other terms to the right.
+ 0.8x=+4.2-9.4
We simplify left and right side of the equation.
+ 0.8x=-5.2
We divide both sides of the equation by 0.8 to get x.
x=-6.5
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