Respuesta :

To simplify you would:
3x+1+2x-6=135
3x+2x=5x
1+-6= -5
5x-5=135
Then add 5 to both sides, so on (5x-5) the negative 5 would cancle out.
5x=140
Then divide 5 on both sides.
Then your answer will be 28.

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