• Matéria: Matemática
  • Autor: belaramos542
  • Perguntado 6 anos atrás

x+4.(x-1)=9-2.(x+3)​

Respostas

respondido por: 4288
1

Espero ter ajudado.

x+4\left(x-1\right)=9-2\left(x+3\right)\\\\x+4x-4=9-2\left(x+3\right)\\\\5x-4=9-2\left(x+3\right)\\\\5x-4=-2x+3\\\\5x-4+4=-2x+3+4\\\\5x=-2x+7\\\\5x+2x=-2x+7+2x\\\\7x=7\\\\x=\frac{7}{7} \\\\x=1

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