88-2(5X-8)=40
2(5X-8)=88-44
2(5X-8)=36
5X-8=18
5X=18+8
X=26
X=26/5
X=5.2您的计算错误！请改过来！88-40≠36！！！！1188-2(5X-8)=402(5X-8)=88-402(5X-8)=485X-8=245X=24+8X=32X=32/5X=6.4