(2x-27)×5.7 = 92.34解方程60－7x = 9x＋40解方程

(2x-27)×5.7 = 92.34解方程60－7x = 9x＋40解方程
(2x-27)×5.7 = 92.34解方程
60－7x = 9x＋40解方程

(2x-27)×5.7 = 92.34解方程60－7x = 9x＋40解方程
(2x-27)×5.7 = 92.34
2x-27 =92.34÷5.7
2x-27=16.2
2x=16.2+27
2x=43.2
x=21.6
60－7x = 9x＋40
7x+9x=60-40
16x=20
x=1.25

2x-27=16.2
2x=43.2
x=21.6

16x=20
x=5/4

21.6 1.25

(2x-27)×5.7 = 92.34
2x-27=92.34/5.7
x=(92.34/5.7+27)/2=21.6

60－7x = 9x＋40
16x=20
x=20/16=5/4=1.25

x=20

2x-27=16.2
2x=43.2
x=21.6
60-7x=9x+40
16x=20
x=20/16
x=5/4