1/4x-1/2=3/4 7x-5/4=3/8x=()x=()

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1/4x-1/2=3/4 7x-5/4=3/8x=()x=()

1/4x-1/2=3/4 7x-5/4=3/8x=()x=()
1/4x-1/2=3/4 7x-5/4=3/8
x=()
x=()

1/4x-1/2=3/4 7x-5/4=3/8x=()x=()
1/4x-1/2=3/4 方程两边乘以4
x-2=3 两边加上2
x=3+2
x=5
7x-5/4=3/8 方程两边加上5/4
7x=3/8+5/4 通分
7x=3/8+10/8
7x=13/8 方程两边除以7
x=13/8÷7
x=13/56

1/4x-1/2=3/4
1/4x=3/4+1/2
1/4x=5/4
x=5/4÷1/4
x=5
7x-5/4=3/8
7x=3/8+5/4
7x=13/8
x=13/8÷7
x=13/56