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Complete the equation that is related to the given equation.
x – (–6.9) = 42.8
x = 42.8 +
OPTIONAL: LEAVE MAILING ADDRESS FOR COOKIE.
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OpenStudy (anonymous):
x= 42.8-(-6.9)
geerky42 (geerky42):
:D
OpenStudy (anonymous):
49.7?
geerky42 (geerky42):
Yep
OpenStudy (anonymous):
Cookie shipping...
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geerky42 (geerky42):
Yay can't wait to eat virtual cookie!
OpenStudy (anonymous):
Click link in email to eat.
jimthompson5910 (jim_thompson5910):
x – (–6.9) = 42.8
turns into
x + 6.9 = 42.8
because subtracting a negative is the same as addition (think of the two negatives cancelling to get a positive)
OpenStudy (anonymous):
good ppl in this chat
jimthompson5910 (jim_thompson5910):
To solve x + 6.9 = 42.8, we subtract 6.9 from both sides
put another way, we add -6.9 to both sides
x + 6.9 = 42.8
x + 6.9 + (-6.9) = 42.8 + (-6.9)
x+0 = 42.8 + (-6.9)
x = 42.8 + (-6.9)
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