81x-342=76(x-2)

问题描述:

81x-342=76(x-2)


    81x-342=76(x-2)
    81x-342=76x-152,
81x-342+342=76x-152+342,
        81x=76x+190
    81x-76x=76x+190-76x
         5x=190
      5x÷5=190÷5
          x=38.