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2.1=7x-9.1
We simplify the equation to the form, which is simple to understand
2.1=7x-9.1
We move all terms containing x to the left and all other terms to the right.
-7x=-9.1-2.1
We simplify left and right side of the equation.
-7x=-11.2
We divide both sides of the equation by -07 to get x.
x=1.6
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