代数式5x-7与4x+9的值相等且互为相反数,求x
问题描述:
代数式5x-7与4x+9的值相等且互为相反数,求x
请详解
答
5x-7=-(4x+9)
X=-2/9
代数式5x-7与4x+9的值相等且互为相反数,求x
请详解
5x-7=-(4x+9)
X=-2/9