3.3(5-r)-4r=18

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Solution for 3.3(5-r)-4r=18 equation: 



3.3(5-r)-4r=18

We move all terms to the left:

3.3(5-r)-4r-(18)=0

We add all the numbers together, and all the variables

3.3(-1r+5)-4r-18=0

We add all the numbers together, and all the variables

-4r+3.3(-1r+5)-18=0

We multiply parentheses

-4r-3.3r+16.5-18=0

We add all the numbers together, and all the variables

-7.3r-1.5=0

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

-7.3r=1.5

r=1.5/-7.3

r=-1/4.8666666666667

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