(x+10)+(x-10)+2x+(x/2)=270这个式子如何解
问题描述:
(x+10)+(x-10)+2x+(x/2)=270这个式子如何解
答
(x+10)+(x-10)+2x+(x/2)=270
x+10+x-10+2x+x/2=270
(1+1+2+1/2)x=270
9/2x=270
x=270÷9/2
x=60