2(2.2d-1)=2(6.5-0.3d)

Solution for 2(2.2d-1)=2(6.5-0.3d) equation:

2(2.2d-1)=2(6.5-0.3d)

We move all terms to the left:

2(2.2d-1)-(2(6.5-0.3d))=0

We add all the numbers together, and all the variables

2(2.2d-1)-(2(-0.3d+6.5))=0

We multiply parentheses

4d-(2(-0.3d+6.5))-2=0


We calculate terms in parentheses: -(2(-0.3d+6.5)), so:

2(-0.3d+6.5)

We multiply parentheses

0d+13

We add all the numbers together, and all the variables

d+13

Back to the equation:

-(d+13)


We get rid of parentheses

4d-d-13-2=0

We add all the numbers together, and all the variables

3d-15=0

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

3d=15

d=15/3

d=5