(4 x 7) + 5 = 33
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4n + 5
n = 1 7n + 6n - 5 = 4n + 4 13n - 5 = 4n + 4 13n - 4n - 5 = 4n - 4n + 4 9n - 5 = 4 9n -5 + 5 = 4 + 5 9n = 9 n = 1
It is a linear equation in one unknown variable, n. Its solution is n = 1
40
555 plus 5 plus 556 is equal to 1,116