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x-4+x-15=4x
We simplify the equation to the form, which is simple to understand
x-4+x-15=4x
We move all terms containing x to the left and all other terms to the right.
+1x+1x-4x=+4+15
We simplify left and right side of the equation.
-2x=+19
We divide both sides of the equation by -2 to get x.
x=-9.5
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