99.04=4(4.6+2.8r)

Solution for 99.04=4(4.6+2.8r) equation:

99.04=4(4.6+2.8r)

We move all terms to the left:

99.04-(4(4.6+2.8r))=0

We add all the numbers together, and all the variables

-(4(2.8r+4.6))+99.04=0


We calculate terms in parentheses: -(4(2.8r+4.6)), so:

4(2.8r+4.6)

We multiply parentheses

8r+18.4

Back to the equation:

-(8r+18.4)


We get rid of parentheses

-8r-18.4+99.04=0

We add all the numbers together, and all the variables

-8r+80.64=0

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

-8r=-80.64

r=-80.64/-8

r=10+0.64/8