Solve for x
x=11
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2\times 9=7+x
Multiply both sides by 9.
18=7+x
Multiply 2 and 9 to get 18.
7+x=18
Swap sides so that all variable terms are on the left hand side.
x=18-7
Subtract 7 from both sides.
x=11
Subtract 7 from 18 to get 11.
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