Carmencollier1
Carmencollier1
19-10-2014
Mathematics
contestada
What is 3/5(15k+10)=12k-9 in steps
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xandipep
xandipep
19-10-2014
multiply both sides by 5
3(15k+10)=5(12k-9)
get rid of the brackets
45k+30=60k-45
take away 45k to both sides
30=15k-45
plus 45 to both sides
75=15k
divide both by 15
k=5
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