Solve for x
x\leq 43
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7+45\geq x+12-3
Subtract 5 from 12 to get 7.
52\geq x+12-3
Add 7 and 45 to get 52.
52\geq x+9
Subtract 3 from 12 to get 9.
x+9\leq 52
Swap sides so that all variable terms are on the left hand side. This changes the sign direction.
x\leq 52-9
Subtract 9 from both sides.
x\leq 43
Subtract 9 from 52 to get 43.
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