That would be 90.
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x + 21 = 36Subtract 21 from each side:x = 15
n + 15 = 36 Therefore, n = 36 - 15 n = 21
The solution to this equation is that h is equal to -4. You can substitute this value for h into the equation to get -4 x -9 - 6 plus 12 x -4 plus 40 equals 22, or 36 - 6 plus - 48 plus 40 equals 22.
132
72