deziroxy88
deziroxy88
10-04-2017
Mathematics
contestada
-7=21+x help please thankyou
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AnimeBrainly
AnimeBrainly
10-04-2017
move the 21 to the other side and change the sign
-7-21=x
x=-28
hope this helps
Answer Link
Аноним
Аноним
10-04-2017
Subtract 21 on both sides.
-7-21=21-21+x
-7-21=x
x=-28
Answer Link
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