sarab2062
sarab2062
04-04-2017
Mathematics
contestada
Need to know the answer asap
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LagMaster
LagMaster
04-04-2017
They are congruent (4x-4)=(3x+17)
x=21
How I got the answer
4x=3x+17+4
4x=3x+21
4x−3x=21
x=21
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Blaugrana
Blaugrana
04-04-2017
4x-4=3x+17
-4 -4
-4=-x+17
-17 -17
-21=-x
you can't have a negative x, so you make both sides positive which gives you x=21
Hope I helped. ☺
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