Solve for x
x=200
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75+770=645+x
Divide 1800 by 24 to get 75.
845=645+x
Add 75 and 770 to get 845.
645+x=845
Swap sides so that all variable terms are on the left hand side.
x=845-645
Subtract 645 from both sides.
x=200
Subtract 645 from 845 to get 200.
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