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45 + 3n = -45
Subtract 45 from both sides: 3n = -90
Divide both sides by 3: n = -30
It depends on what x and y are.
66.
17 plus 15 plus 13 equals 45.
45
79.
They are two terms of an algebraic expression in the form of 45-3n
45 + 9 = 54
45 + 6 = 51
A equals 20.
83
2+45 = 47