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115=21x+2
We simplify the equation to the form, which is simple to understand
115=21x+2
We move all terms containing x to the left and all other terms to the right.
-21x=+2-115
We simplify left and right side of the equation.
-21x=-113
We divide both sides of the equation by -021 to get x.
x=5.3809523809524
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