Respuesta:
Explicación paso a paso:
1. 3x+2x=10+5
5x=15
x=3
2. 2x+x=20+11
3x=31
x=31/3 ---> 10,3...
3. x+3x=30+10
4x=40
x=10
4. 5x=x+20
4x=20
x=5
5. x+2x+x=40
6. 2x+x=20+10+30
3x=60
x=20
7. 20+2x=40
2x=20
8. 10+2x+x=x+30
10+3x=x+30
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Respuesta:
Explicación paso a paso:
1. 3x+2x=10+5
5x=15
x=3
2. 2x+x=20+11
3x=31
x=31/3 ---> 10,3...
3. x+3x=30+10
4x=40
x=10
4. 5x=x+20
4x=20
x=5
5. x+2x+x=40
4x=40
x=10
6. 2x+x=20+10+30
3x=60
x=20
7. 20+2x=40
2x=20
x=10
8. 10+2x+x=x+30
10+3x=x+30
2x=20
x=10