Respuesta:
3x-8x+9x = 12
-5x+9x = 12
4x = 12
4x/4 = 12/4
x = 3
Explicación paso a paso:
3x - 8x + 9x = 12 - 7x
5x + 9x = 12 -7x
14x = 12 - 7x
14x + 7x = 12
21x = 12
x = 12/21
x = 4/7
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Verified answer
Respuesta:
3x-8x+9x = 12
-5x+9x = 12
4x = 12
4x/4 = 12/4
x = 3
Explicación paso a paso:
Respuesta:
3x - 8x + 9x = 12 - 7x
5x + 9x = 12 -7x
14x = 12 - 7x
14x + 7x = 12
21x = 12
x = 12/21
x = 4/7
Explicación paso a paso: