destine12333
destine12333
05-09-2017
Mathematics
contestada
How do I answer this problem
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baevans34
baevans34
05-09-2017
5(r+9)-2(1-r)=1
5r+45-2+r=1
6r+43=1
6r=-42
r=-7
Answer Link
DEEZEE67
DEEZEE67
05-09-2017
5(r+9)-2(1-r)=1
Expand 5r+45-2+2r=1
Simplify 5r+45-2+2r to 7r+43
7r+43=1
Subtract 43 from both sides
7r=1-43
7r=-42
Divide both sides by 7
r=-42/7 to -6
r=-6
Answer Link
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