sarab2062
sarab2062 sarab2062
  • 04-04-2017
  • Mathematics
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Need to know the answer asap

Need to know the answer asap class=

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LagMaster
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=21x=21

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Blaugrana
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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