• Matéria: Matemática
  • Autor: helodib
  • Perguntado 9 anos atrás

2x+11=x

3x+1=2x


1+2x=3-5x

5x-1=2-x

Respostas

respondido por: joseeduardo2202
1
2x + 11 = x  >>> 2x - x = - 11 >>> x = - 11

3x + 1 = 2x >>>  3x - 2x = -1 >>> x = - 1

1 + 2x = 3 - 5x >>>  2x + 5x = 3 - 1 >>> 7x = 2 >>> x = 2/7

5x - 1 = 2 - x >>>  5x + x = 2 + 1 >>> 6x = 3 >>> x = 3/6 >> x = 1/2
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