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What is 3/5(15k+10)=12k-9 in steps

Sagot :

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