81x-342=76(x-2)
问题描述:
81x-342=76(x-2)
答
81x-342=76(x-2) 81x-342=76x-152,81x-342+342=76x-152+342, 81x=76x+190 81x-76x=76x+190-76x ...
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 ...