Question

3a-5b=a/(b+1) из равенства выразите а

Answer 1

3a-5b=a/(b+1)

3a(b+1)-5b(b+1)=a

3a(b+1)-a=5b(b+1)

a(3(b+1)-1)=5b^2+5b

a(3b+3-1)=5b^2+5b

a(3b+2)=5b^2+5b

a=(5b^2+5b)/(3b+2)