Question

7x - 8 + 2x =4x + 17

Answer 1

Respuesta:     Respuesta:

(-5a+2ab-b)-(-7a-ab+2b)=

=(2ab−5a−b)−(−ab−7a+2b)=  

=3ab+2a−3b

(5x²+6x-9) - (7x²-2x+3)=

=−2x2+8x−12

Answer 2

Respuesta:

x = 5

Explicación paso a paso:

7x - + 2x - 8 = 4x + 17

9x - 8 = 4x + 17

9x - 8 + 8 = 4x + 17 + 8

9x = 4x = 4x + 25 - 4x

5x = 25

5x/5 = 25/5

= x = 5

Espero te ayude