Question

Oblicz:d
a=b+c/d
a=bc+d
a=b/c+d
ab=cd

Prosze zróbcie to bo mi jest pilnie potrzebne

Answer 1

A=b+c/d /*d
ad=b+c/a
d=b+c/d

a=bc+d/:bc
d=a/bc

a=b/c+d /*c+d
a(c+d)=b
ac+ad=b/a²c
d=b/a²c

ab=cd/c
d=ab/c

Answer 2

A=(b+c)/d /xd
ad=b + c/ :a
d=(b + c)/a

a=bc+d /-bc
d=a -bc

a=b/c+d /-b/c
d=a - b/c

ab=cd /:c
d=ab/c

Answer 3

1.a=b+c/d |*d
ad=b+c |/a
d= b+c/d
2.a=bc+d |-bc
a-bc= d
3.a=b/c+d |*c
ac=b+d |/b
ac\b=d
4.ab=cd |/c
ab/c=d