jchristian7279
jchristian7279 jchristian7279
  • 30-10-2019
  • Mathematics
contestada

I have some answers the these problems but I just wanna make sure there right.. PLEASE Help??

I have some answers the these problems but I just wanna make sure there right PLEASE Help class=
I have some answers the these problems but I just wanna make sure there right PLEASE Help class=
I have some answers the these problems but I just wanna make sure there right PLEASE Help class=

Respuesta :

Cathi Cathi
  • 30-10-2019
7x+12+63=180
8x+12=180
Subtract 12 from both sides
8x= 168
=c=21

10x-40=50
Add 40 to both sides
10x=90
X=9

4x+72+2x-12=180
6x +60 =180
Subtract 60 from both sides
6x=120
X=20
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