当X为何值时,4x+6与-10X+12互为相反数?
问题描述:
当X为何值时,4x+6与-10X+12互为相反数?
答
4x+6 = -10X+12 = 0,或4x+6 + (-10X+12) = 0
前式无解,
后式-6x = -18
x = 3