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54=9x+8.1
We simplify the equation to the form, which is simple to understand
54=9x+8.1
We move all terms containing x to the left and all other terms to the right.
-9x=+8.1-54
We simplify left and right side of the equation.
-9x=-45.9
We divide both sides of the equation by -09 to get x.
x=5.1
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