MatemáticasBásico1 respuestas

Ayude por favor1?

Ayude por favor 1. 4 + 7x = - 12 2 . M - 157 = - 657 3. 8x = - 16 4. - 3n + 9 = - 21 5. 4(x - 2) = - 4(3 - x) - 5x 6. 9( x + 2) - 3( x - 5) 7. 6(6 + x) - 4(2 x + 8) = 45 - 7x.

En resumen

1 4 + 7x = - 12 7x = - 12 - 4 7x = - 16 x = - 16 / 7 2 . M - 157 = - 657 m = - 657 + 157 m = - 500 3. 8x = - 16 x = - 16 / 8 x = - 2 4. - 3n + 9 = - 21 - 3n = - 21 - 9 - 3n = - 30 n = 30 / 3 n = 10 5.

Mejor respuesta

Michelleguaman3
7

1 4 + 7x = - 12 7x = - 12 - 4 7x = - 16 x = - 16 / 7

2 .

M - 157 = - 657 m = - 657 + 157 m = - 500

3.

8x = - 16 x = - 16 / 8 x = - 2

4.

- 3n + 9 = - 21 - 3n = - 21 - 9 - 3n = - 30 n = 30 / 3 n = 10

5.

4(x - 2) = - 4(3 - x) - 5x 4 x - 8 = - 12 + 4x - 5x 4x - 4x + 5x = - 12 + 8 5x = - 4 x = - 4 / 5 6.

No igualaste.

7. 6(6 + x) - 4(2 x + 8) = 45 - 7x 36 + 6x - 8x - 32 = 45 - 7x 6x - 8x + 7x = 45 - 36 + 32 5x = 41 x = 41 / 5.