Explicación paso a paso:
4)
[tex] \frac{15 + x + 25 - x}{2} = 20[/tex]
5)
2x-3=5x-18
15=3x
x=5
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Verified answer
Explicación paso a paso:
4)
[tex] \frac{15 + x + 25 - x}{2} = 20[/tex]
5)
2x-3=5x-18
15=3x
x=5