Question

resolva descobrindo o valor do termo × desconhecido

2×+14=5×-1

por favor?

Answer 1

2×+14=5×-1
2x - 5x = - 1 - 14
- 3x = - 15 . (-1)
3x = 15
x = 15/3
x = 5

Answer 2

$2x+14=5x-1 \\ \\ 14=5x-1-2x \\ \\ 14=2x-1 \\ \\ 14+1=3x \\ \\ 15=3x \\ \\ x= \frac{-15}{-3} \\ \\ x=5$