r*4+10=r*2

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Solution for r*4+10=r*2 equation: 



r*4+10=r*2

We move all terms to the left:

r*4+10-(r*2)=0

We add all the numbers together, and all the variables

r*4-(+r*2)+10=0

Wy multiply elements

4r-(+r*2)+10=0

We get rid of parentheses

4r-r*2+10=0

Wy multiply elements

4r-2r+10=0

We add all the numbers together, and all the variables

2r+10=0

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

2r=-10

r=-10/2

r=-5

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