Respuesta :

Answer:

x = -28

Step-by-step explanation:

(9x + 42) - 5x = -70

Remove the parentheses since they are unnecessary here.

9x + 42 - 5x = -70

Combine like terms on the left side.

4x + 42 = -70

Subtract 42 from both sides.

4x = -112

Divide both sides by 4.

x = -28

Good evening ,

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Answer:

x= -28

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Step-by-step explanation:

(9x + 42) – 5x = -70

⇔ 9x+42-5x=-70

⇔ (9x-5x)+42= -70

⇔ 4x= -70-42

⇔ 4x= -112

⇔ x=-112÷4

⇔ x= -28.

:)