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If f(x)=4x+12x and g(x)=5x-1 find (f+g)(x)
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If f(x)=4x+12x and g(x)=5x-1 find (f+g)(x)

User DJClayworth
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You just have to combine like terms 4x+5x +12 -
1 = 9x+11 I am not sure if it is 12x or just 12 if it is 12x the answer is 21x-1
User Vbartalis
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