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-11=2.5x-9
We simplify the equation to the form, which is simple to understand
-11=2.5x-9
We move all terms containing x to the left and all other terms to the right.
-2.5x=-9+11
We simplify left and right side of the equation.
-2.5x=+2
We divide both sides of the equation by -02.5 to get x.
x=-0.8
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