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j+7-1=2(j-1)
We simplify the equation to the form, which is simple to understand
j+7-1=2(j-1)
Reorder the terms in parentheses
j+7-1=+(+2j-2)
Remove unnecessary parentheses
+j+7-1=+2j-2
We move all terms containing j to the left and all other terms to the right.
+1j-2j=-2-7+1
We simplify left and right side of the equation.
-1j=-8
We divide both sides of the equation by -1 to get j.
j=8
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