5⼀8x+3⼀4(84-x)=58

求解!!!!!!!!!!!!!!!!
2024-12-05 06:22:20
推荐回答(1个)
回答1:

5/8x+(84-x)*3/4=585/8x+84*3/4-3/4x=58(5/8-3/4)x=58-63(5/8-6/8)x=-5-1/8x=-5x=5*8x=40