Question

помогите решить уравнение- 1/4:(3/4х-1/2)+2/5=1/2

Answer 1

если -1/4, то при раскрытии скобок имеем
-3/16х+1/8+2/5=1/2
-3/16х+21/40=1/2
-3/16х=1/2-21/40
-3/16х=-1/40
х=-1/40 : (-3/16)
х=1/40*16/3
х=2/15

Answer 2

3/16х+1/8+2/5=1/2
3/16х+21/40=1/2
3/16х=1/2-21/40
3/16х=-1/40
х=1/40 : (-3/16)
х=1/40*16/3
х=2/15