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3 votes
Help me please as soon as possible

Help me please as soon as possible-example-1

2 Answers

3 votes
X=15


90+31+3x-1=180
121+3x-1=180
120+3x=180
3x=60
X=15
User Joe Halliwell
by
5.1k points
6 votes
90+31= 121
3x-1+121=120
3x+120=180
-120
3x=60
Divide by 3 on both sides
X=20
User Piotr Pasieka
by
4.5k points