SOLUTION: Please help me- I do not understand how to solve for k. (-9/2)k + (-6/5) = 9 - (9/8)k Thank you!
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Question 642398
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Please help me- I do not understand how to solve for k.
(-9/2)k + (-6/5) = 9 - (9/8)k
Thank you!
Answer by
jim_thompson5910(35256)
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(-9/2)k + (-6/5) = 9 - (9/8)k
40*(-9/2)k + 40*(-6/5) = 40*9 - 40*(9/8)k ... Multiply EVERY term by the LCD 40 to clear out the fractions.
20*(-9)k + 8*(-6) = 40*9 - 5*(9)k
-180k - 48 = 360 - 45k
-180k=360-45k+48
-180k+45k=360+48
-135k=360+48
-135k=408
k=(408)/(-135)
k=-136/45
So the solution is
k = -136/45