4x加2(x-2)等于8是多少
问题描述:
4x加2(x-2)等于8是多少
答
x等于2
4x+2(x-2)=8
4x+2x-2X2 =8
4x+2x-4+4 =8+4
4x+2x =12
(4+2)X =12
6x除以6 =12除以6
x =2