.4(2r-1)=-2(3r+16)

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Solution for .4(2r-1)=-2(3r+16) equation:



.4(2r-1)=-2(3r+16)
We move all terms to the left:
.4(2r-1)-(-2(3r+16))=0
We multiply parentheses
0.8r-(-2(3r+16))-0.4=0
We calculate terms in parentheses: -(-2(3r+16)), so:
-2(3r+16)
We multiply parentheses
-6r-32
Back to the equation:
-(-6r-32)
We get rid of parentheses
0.8r+6r+32-0.4=0
We add all the numbers together, and all the variables
6.8r+31.6=0
We move all terms containing r to the left, all other terms to the right
6.8r=-31.6
r=-31.6/6.8
r=-4+1.8333333333333/2.8333333333333

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