Solve for x
x=39
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9+12+20=x+2
Multiply 3 and 4 to get 12. Multiply 5 and 4 to get 20.
21+20=x+2
Add 9 and 12 to get 21.
41=x+2
Add 21 and 20 to get 41.
x+2=41
Swap sides so that all variable terms are on the left hand side.
x=41-2
Subtract 2 from both sides.
x=39
Subtract 2 from 41 to get 39.
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