-28 = -7(3x + 4) +21x

asked Oct 13, 2022 55.5k views

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2 votes

Answer:

1 Expandir.

-28=-21x-28+21x

−28=−21x−28+21x

2 Simplifica -21x-28+21x−21x−28+21x a -28−28.

-28=-28

−28=−28

3 Ya que ambos lados son iguales, hay infinitas soluciones.

Soluciones Infinitas

Explanation:

Zayenz answered Oct 18, 2022

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