-12r+7=4(5-3r)-5

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Solution for -12r+7=4(5-3r)-5 equation:



-12r+7=4(5-3r)-5
We move all terms to the left:
-12r+7-(4(5-3r)-5)=0
We add all the numbers together, and all the variables
-12r-(4(-3r+5)-5)+7=0
We calculate terms in parentheses: -(4(-3r+5)-5), so:
4(-3r+5)-5
We multiply parentheses
-12r+20-5
We add all the numbers together, and all the variables
-12r+15
Back to the equation:
-(-12r+15)
We get rid of parentheses
-12r+12r-15+7=0
We add all the numbers together, and all the variables
-8!=0
There is no solution for this equation

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