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2.45=-0.7k=
We move all terms to the left:
2.45-(-0.7k)=0
We get rid of parentheses
0.7k+2.45=0
We move all terms containing k to the left, all other terms to the right
0.7k=-2.45
k=-2.45/0.7
k=-3+0.35/0.7
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