(x-4)-3(x+12)=30求x=多少

(x-4)-3(x+12)=30求x=多少
2025-06-22 11:12:26
推荐回答(1个)
回答1:

(x-4)-3(x+12)=30
x-4-3x-36=30
-2x=30+36
-2x=66
x=-33,