2/5-3/4•(x+1/3)= 2•1,2+(1-3•1,2)= Помогите срочно

Question

2/5-3/4•(x+1/3)=
2•1,2+(1-3•1,2)=

Помогите срочно

Answer 1

2/5-3/4(х+1/3)=
2/5-3/4х-3/4*1/3=
2/5-3/4х-1/4=
-3/4х=1/4-2/5
-3/4х=5/20-8/20
-3/4х=-3/20
х=-3/20:(-3/4)
х=-3/20*(-4/3)
х=1/5

2*1,2+(1-3*1,2)=
=2,4+(1-3,6)=
=2,4+(-2,4)=2,4-2,4=0