Respostas

  • Usuário do Brainly
2014-03-30T19:07:13-03:00
5/8x+1/4x+9= x (mmc 8,4=8)
5 x +2x+72=8x
7x+72=8x
72=8x-7x
x =72


5/8*72=45
1/72=18 ----> 18*5=90+45=135
R =135




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