Explicación paso a paso:
3)
[tex]2x+10+140=180 \\ 2x = 180 - 150 \\ x = 15[/tex]
4)
[tex]3x=40+35 \\ 3x = 75 \\ x = 25[/tex]
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Explicación paso a paso:
3)
[tex]2x+10+140=180 \\ 2x = 180 - 150 \\ x = 15[/tex]
4)
[tex]3x=40+35 \\ 3x = 75 \\ x = 25[/tex]