-2.86=-2(c+-0.78)

Solution for -2.86=-2(c+-0.78) equation:

-2.86=-2(c+-0.78)

We move all terms to the left:

-2.86-(-2(c+-0.78))=0

We add all the numbers together, and all the variables

-(-2(c-0.78))-2.86=0


We calculate terms in parentheses: -(-2(c-0.78)), so:

-2(c-0.78)

We multiply parentheses

-2c+1.56

Back to the equation:

-(-2c+1.56)


We get rid of parentheses

2c-1.56-2.86=0

We add all the numbers together, and all the variables

2c-4.42=0

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

2c=4.42

c=4.42/2

c=2+0.42/2