haileysolis5
17.10.2019 •
Mathematics
gwendolyn is asked to solve the equation -43 – 3) = 20. she sh
-4(x - 3) = 20
- 4x + 12 = 20
- 4x = 32
x = -8
unfortunately, gwendolyn's work is flawed. explain the flaw in gwendolyns work
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Ответ:
-4x + 12 = 20 is incorrect. she added 12 to 20 instead of subtracting 12 from both sides.
Step-by-step explanation:
It should have been, write problem
-4(x - 3) = 20
Use distributive property.
-4x + 12 = 20
subtract 12 from each side
-4x =8
divide each side by -4
x = -2
Ответ:
the radii would equal 7.5