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April
Mathematics
27 May, 17:54
2.5 + 0.5k=2 (k + 0.5)
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2
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Ana Ellison
27 May, 18:20
0
k = 1
Step-by-step explanation:
Solve for k:
0.5 k + 2.5 = 2 (k + 0.5)
Expand out terms of the right hand side:
0.5 k + 2.5 = 2 k + 1
Subtract 2 k from both sides:
(0.5 k - 2 k) + 2.5 = (2 k - 2 k) + 1
0.5 k - 2 k = - 1.5 k:
-1.5 k + 2.5 = (2 k - 2 k) + 1
2 k - 2 k = 0:
2.5 - 1.5 k = 1
Subtract 2.5' from both sides:
(2.5 - 2.5) - 1.5 k = 1 - 2.5
2.5 - 2.5 = 0:
-1.5 k = 1 - 2.5
1 - 2.5 = - 1.5:
-1.5 k = - 1.5
Divide both sides of - 1.5 k = - 1.5 by - 1.5:
(-1.5 k) / (-1.5) = (-1.5) / (-1.5)
(-1.5) / (-1.5) = 1:
k = (-1.5) / (-1.5)
(-1.5) / (-1.5) = 1:
Answer: k = 1
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Donovan Armstrong
27 May, 18:22
0
k=1
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
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