O.5x+4x=180

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Solution for O.5x+4x=180 equation: 



.5O+4O=180

We move all terms to the left:

.5O+4O-(180)=0

We add all the numbers together, and all the variables

4.5O-180=0

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

4.5O=180

O=180/4.5

O=40

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