Question

5x – 15 = 10x + 20
porfavor es urgente

Answer 1

Respuesta:

5x - 15 = 10x + 20

-10x + 5x = 20 + 15

-5x = 35

x = - 7

Ojala te ayude ;)

Coronita?

Answer 2

$5x - 15 = 10x + 20 \\ 5x - 10x = 20 + 15 \\ - 5x = 35 \\ x = 35 \div ( - 5) \\ x = - 7$

Verificación:

$5 \times ( - 7) - 15 = 10 \times ( - 7) + 20 \\ - 35 - 15 = - 70 + 20 \\ - 50 = - 50$