r+4.2/3=-2.5

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Solution for r+4.2/3=-2.5 equation: 



r+4.2/3=-2.5

We move all terms to the left:

r+4.2/3-(-2.5)=0

We add all the numbers together, and all the variables

r+2.5+4.2/3=0

We multiply all the terms by the denominator


r*3+4.2+(2.5)*3=0

We add all the numbers together, and all the variables

r*3+11.7=0

Wy multiply elements

3r+11.7=0

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

3r=-11.7

r=-11.7/3

r=-3+2.7/3

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