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Lilit [14]
3 years ago
9

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

Mathematics
1 answer:
Vlada [557]3 years ago
7 0

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

Step-by-step explanation:

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