10-5r=2(-5r-7)-3r

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Solution for 10-5r=2(-5r-7)-3r equation:



10-5r=2(-5r-7)-3r
We move all terms to the left:
10-5r-(2(-5r-7)-3r)=0
We calculate terms in parentheses: -(2(-5r-7)-3r), so:
2(-5r-7)-3r
We add all the numbers together, and all the variables
-3r+2(-5r-7)
We multiply parentheses
-3r-10r-14
We add all the numbers together, and all the variables
-13r-14
Back to the equation:
-(-13r-14)
We get rid of parentheses
-5r+13r+14+10=0
We add all the numbers together, and all the variables
8r+24=0
We move all terms containing r to the left, all other terms to the right
8r=-24
r=-24/8
r=-3

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