+3454 5.4(3k-12)+3.2(2k-6)=-136
(5.4 x 3k) + (5.4 x -12) + (3.2 x 2k) + (3.2 x -6) = -136
16.2k + (-64.8) + 6.4k + (-19.2) = -136
16.2k + (-64.8) + 6.4k + (-19.2) = -136
22.6k + (-64.8) + (-19.2)
22.6k + -84 = -136
+84 +84
----------------------------
22.6k = -52
k ≈ 2.3
