解方程3/4X+2X=77

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解方程3/4X+2X=77解方程3/4X+2X=77解方程3/4X+2X=773/4X+2X=77(3/4+2)X=7711/4X=77X=77÷(11/4)X=77×(4/11)X=442.75x=

解方程3/4X+2X=77
解方程3/4X+2X=77

解方程3/4X+2X=77
3/4X+2X=77
(3/4+2)X=77
11/4X=77
X=77÷(11/4)
X=77×(4/11)
X=44

2.75x=77
x=28

3/4X+2X=77
(3/4+2)X=77
(3/4+2)X=77 /(3/4+2)

28

3x+8x=4*77=308
11x=308
x=28