1.8(6.4d+4)=1.6(8.3d+6.7)

Solution for 1.8(6.4d+4)=1.6(8.3d+6.7) equation:

1.8(6.4d+4)=1.6(8.3d+6.7)

We move all terms to the left:

1.8(6.4d+4)-(1.6(8.3d+6.7))=0

We multiply parentheses

10.8d-(1.6(8.3d+6.7))+7.2=0


We calculate terms in parentheses: -(1.6(8.3d+6.7)), so:

1.6(8.3d+6.7)

We multiply parentheses

12.8d+10.72

Back to the equation:

-(12.8d+10.72)


We get rid of parentheses

10.8d-12.8d-10.72+7.2=0

We add all the numbers together, and all the variables

-2d-3.52=0

We move all terms containing d to the left, all other terms to the right

-2d=3.52

d=3.52/-2

d=-1+1/1.3157894736842