Respuesta:
[tex]x=-5[/tex]
Explicación paso a paso:
[tex]-7x-15=20\\\\-7x-15+15=20+15\\\\-7x=35\\\\\dfrac{-7x}{-7}=\dfrac{35}{-7}\\\\x=-5[/tex]
Verificación:
[tex]-7x-15=20\\\\-7(-5)-15=20\\\\35-15=20\\\\20=20[/tex]Verdadero.
- 7x - 15 = 20
Sumar 15 de ambos lados
- 7x - 15 + 15 = 20 + 15
Simplificar
- 7x = 35
x = - 5
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Verified answer
Respuesta:
[tex]x=-5[/tex]
Explicación paso a paso:
[tex]-7x-15=20\\\\-7x-15+15=20+15\\\\-7x=35\\\\\dfrac{-7x}{-7}=\dfrac{35}{-7}\\\\x=-5[/tex]
Verificación:
[tex]-7x-15=20\\\\-7(-5)-15=20\\\\35-15=20\\\\20=20[/tex]Verdadero.
- 7x - 15 = 20
Sumar 15 de ambos lados
- 7x - 15 + 15 = 20 + 15
Simplificar
- 7x = 35
x = - 5