hahskskdjd hahskskdjd
  • 11-11-2020
  • Mathematics
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gehahsh gehahsh
  • 11-11-2020
90+31= 121
3x-1+121=120
3x+120=180
-120
3x=60
Divide by 3 on both sides
X=20
Answer Link
jzelaya103105 jzelaya103105
  • 11-11-2020
X=15


90+31+3x-1=180
121+3x-1=180
120+3x=180
3x=60
X=15
Answer Link

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