Question

若x=2分之1是方程4分之2x-m-2分之1=3分之x-m,求4分之1（-4m-8）-（m-1）的值

Answer 1

如果我没看错题的话

将x = 2代入方程得,

4 - m/4 - 1/2 = 2 - m/3

1/3m - 1/4m = 2 - 4 + 1/2

1/12m = -3/2

m = -3/2 × 12

m = -18

1/4（-4m-8）-（m -1）

= -m - 2 - m + 1

= -2m - 1

= -2 × (-18) - 1

= 36 - 1

= 35