Solve for x_7
x_{7}=3275.5
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x_{7}-5=3270.5
Add 5 and 3265.5 to get 3270.5.
x_{7}=3270.5+5
Add 5 to both sides.
x_{7}=3275.5
Add 3270.5 and 5 to get 3275.5.
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