Kirchoffs current law question ( will appreciate your help) this is the hardest part of my assignment!

27=1.5*i1+8*i1-8*i2

27=9.5*ii1-8*i2

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-26=2*i2-8*i1+8*i2

-26=-8*i1+10*i2

10*i2=-26+8i1

i2=-2.6+0.8*i1

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27=9.5*i1-8( -2.6+0.8*i1)

27=9.5*i1+20.8-6.4*i1

3.1*i1=6.2

i1=2

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i2=-2.6+0.8*i1=-2.6+0.8*2=-2.6+1.6=-1

i1=2   and  i2=-1