Respuesta:
Explicación paso a paso:
1. 2x+x+15=90
3x+15=90
3x=75
x=25
2. x+3x+2x=180
6x=180
x=30
3. 3x+12+2x+3=90
5x+15=90
5x=75
x=15
4. x+5+2x+25+2x+10=180
5x+40=180
5x=140
x=28
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Respuesta:
Explicación paso a paso:
1. 2x+x+15=90
3x+15=90
3x=75
x=25
2. x+3x+2x=180
6x=180
x=30
3. 3x+12+2x+3=90
5x+15=90
5x=75
x=15
4. x+5+2x+25+2x+10=180
5x+40=180
5x=140
x=28