Resolver las siguientes ecuaciones a - 2x + 5 = 19, b - 3x - 4 = 20, c - 4x + 9 + x = 24 , d - 9 + 7x - 3 - 4x = 27 , e - 8x - 7 + x = 5x + 21?

Question

Resolver las siguientes ecuaciones a - 2x + 5 = 19, b - 3x - 4 = 20, c - 4x + 9 + x = 24 , d - 9 + 7x - 3 - 4x = 27 , e - 8x - 7 + x = 5x + 21.

Artud · Accepted Answer

A. - X = 7 b - X = 8 c - X = 3 d - X = 7 e. - X = 7.

Lolalexa37 · Answer

A)x = 19 - 5 = 14 / - 2 = - 7

B)x = 20 + 4 = 24 / - 3 = - 8

C) - 4x + x = 24 - 9 = x = 15 / - 3 = - 5

d)7x - 4x = 27 + 9 + 3 = x = 39 / - 3 = - 13

E) - 8x + x - 5x = 21 + 7 - 7× - 5× = 28 - 12× = 28

× = 28 / - 12 = mitad = 14 / - 6 segunda 7 / - 3.

Calculadora: Calculadora de ecuaciones de segundo grado