Asked by dakota
solve each equation and verify the results
5(a-3)=20
-2(n+3)=-10
7=4(2+y)
-2(n+3)=-6
5(a-3)=20
-2(n+3)=-10
7=4(2+y)
-2(n+3)=-6
Answers
Answered by
Reiny
These are fundamental easy equations.
You absolutely MUST know how to do these
I will do the 2nd one:
-2(n+3)=-10
-2n - 6 = -10 , I expanded
-2n = -4 , I added 6 to both sides
n = 2 , I divided both sides by -2
You absolutely MUST know how to do these
I will do the 2nd one:
-2(n+3)=-10
-2n - 6 = -10 , I expanded
-2n = -4 , I added 6 to both sides
n = 2 , I divided both sides by -2
Answered by
dakota
No actually, we just learnt these and I 've been having trouble gripping how to do them! sorry. I just needed help understanding the steps on how to do it. So no I actually don't know how to do them yet and was trying to get a better idea on the procedure needed to solve these.
But thank you anyways I think I get it now!!
But thank you anyways I think I get it now!!
Answered by
henry2,
1. 5(a-3) = 20.
Divide both sides by 5:
a-3 = 4
Add 3 to both sides:
a = 7.
Divide both sides by 5:
a-3 = 4
Add 3 to both sides:
a = 7.
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