If f(x) = -4x+9 and g(x) = 2x -7, find f (g(x)) ?
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If f(x) = -4x+9 and g(x) = 2x -7, find f (g(x)) ?
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2(3x+b)+9 = 3(2x+9)+b
6x+2b+9 = 6x+27+b
b = 18