Respuesta:
1: 2x + 4 = 20, x = 8. 2x - 4 = 20, x = 8. 4x + 4 = 20, x = 8, x = 8. x + 4 = 20, x = 16
2: x=4
x+5=9
x=9-5
x=4
3: x= 6
3x-3=15
3x=15+3
3x=18
x=18/3 x=6
espero que te sirva
Explicación paso a paso:
coronita porfis
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Respuesta:
1: 2x + 4 = 20, x = 8. 2x - 4 = 20, x = 8. 4x + 4 = 20, x = 8, x = 8. x + 4 = 20, x = 16
2: x=4
x+5=9
x=9-5
x=4
3: x= 6
3x-3=15
3x=15+3
3x=18
x=18/3 x=6
espero que te sirva
Explicación paso a paso:
coronita porfis