Respuesta :

Answer:

x = 5, x = 26

Step-by-step explanation:

(8)

7 = [tex]\frac{77}{x+6}[/tex] ( multiply both sides by x + 6 )

7(x + 6) = 77 ( divide both sides by 7 )

x + 6 = 11 ( subtract 6 from both sides )

x = 5

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(10)

[tex]\frac{x}{-2}[/tex] + 10 = - 3 ( subtract 10 from both sides )

[tex]\frac{x}{-2}[/tex] = - 13 ( multiply both sides by - 2 to clear the fraction )

x = 26

Step-by-step explanation:

Hey there!

8. 7 = 77/(X+6).

Multiply 7 and (X+6)

[tex]7x + 42 = 77[/tex]

Take "42" on right side and subtract it from 77.

[tex]7x = 77 - 42[/tex]

[tex]x = \frac{35}{7} [/tex]

Therefore, X = 5.

10.

[tex] \frac{x}{ - 2} + 10 = - 3[/tex]

Shift "10" on right side.

[tex] \frac{x}{ - 2 } = - 3 - 10[/tex]

Simplify it.

[tex]x = - 13 \times - 2[/tex]

[tex]x = 26[/tex]

Therefore, X = 26.

Hope it helps...