Respostas

  • Usuário do Brainly
2014-08-05T14:30:47-03:00
H(x)=3(4-x)+9x
3(4-x)+9x=0
12-3x+9x=0
-3x+9x=-12
6x=12
x=12÷6
x=2
H(x)=2

g(x)=4x+(3x-2)

4x+3x-2=0
7x=2

x= \frac{2}{7}

g(x)= \frac{2}{7}
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