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12+22+32+42...,n=8
We simplify the equation to the form, which is simple to understand
12+22+32+42...,n=8
We move all terms containing n to the left and all other terms to the right.
+42n=+8-12-22-32
We simplify left and right side of the equation.
+42n=-58
We divide both sides of the equation by 42 to get n.
n=-1.3809523809524
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