Question

6x+19x=22.5 x+17%=9.36 78%x=39 70%x-18%x=3.12 12x+53=137 28%x+375x=22.75

Answer 1

你好：

6x+19x=22.5
解：(6+19)x=22.5
15x=22.5
x=1.5

x+17%=9.36
解：x+0.17=9.36
x=9.36-0.17
x=9.19

78%x=39
解：x=39÷78%
x=39÷0.78
x=50

70%x-18%x=3.12
解：(70%-18%)x=3.12
52%x=3.12
x=3.12÷52%
x=6

12x+53=137
解：12x=137-53
12x=84
x=84÷12
x=7

Answer 2

6x+19x=22.5 x+17%=9.36 78%x=39 70%x-18%x=3.12 12x+53=137 28%x+375x=22.75