(x-2.6)/5=(x+5-2.6)/7.5怎么算?

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/28 14:19:27
(x-2.6)/5=(x+5-2.6)/7.5怎么算?(x-2.6)/5=(x+5-2.6)/7.5怎么算?(x-2.6)/5=(x+5-2.6)/7.5怎么算?左右同乘5*7.57.5(x-2.6)

(x-2.6)/5=(x+5-2.6)/7.5怎么算?
(x-2.6)/5=(x+5-2.6)/7.5怎么算?

(x-2.6)/5=(x+5-2.6)/7.5怎么算?
左右同乘 5*7.5
7.5(x-2.6)= 5*(x+5-2.6)
7.5x -7.5*2.6 = 5x + 5*5 - 5*2.6
7.5x - 5x = 5*5-5*2.6+7.5*2.6
2.5x = 25 + 2.6*2.5
x = 10+2.6
x = 12.6