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9h + 2 = -79 9h = -81 h = -81/9 h = -9
h is the 8th letter on the English alphabet..
9h + 2 < - 79 subtract 2 to both sides 9h < - 81 divide by 9 to both sides h < -9 All numbers less than 9 are solutions for the inequality. Note that 9 is not a solution.
It is: 9h+4(2+h) = 9h+8+4h => 13h+8
9h^2+24h+16=(9h+16)(h+1)