Question

4 ( 3x + 7x ) +8 = -3 ( 2x -6x ) -3 con comprobacion gracias

Answer 1

Respuesta:

sale que x = -11/28

Explicación paso a paso:

4 ( 3x + 7x ) +8 = -3 ( 2x -6x ) -3

4 × 10x + 8 = −3(2x−6x) −3

4 × 10x + 8 = −3 × −4x − 3

40x + 8 = −3 × −4x −3

40x + 8 = −(−12x) −3

40x + 8 = 12x − 3

40x + 8 − 12x = −3

28x + 8 = −3

28x = −3 −8

28x = −11

x = − 11/28

comprobaciòn:

4( 3 * -11/28 + 7 * -11/28 ) + 8 = -3( -11/28 - 6 * -11/28 ) -3

4( -33/28 - 11/4) + 8 = -3(-11/14 - (-66/28)) - 3

4 * -110/28 + 8 = -3 * 22/14 - 3

-110/7 + 8 = -66/14 - 3

-54/7 = -54/7

espero q te ayude :D

Answer 2

Respuesta:

12x+28x+8= -6x+18-3

12x+28x-6x= 18-3-8

34x=7

x=7÷34

x=0.2058