Solve for x
x=18
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5\times 4=2+x
Multiply both sides by 4.
20=2+x
Multiply 5 and 4 to get 20.
2+x=20
Swap sides so that all variable terms are on the left hand side.
x=20-2
Subtract 2 from both sides.
x=18
Subtract 2 from 20 to get 18.
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