Question

Realize a equação 13x-23-45=-7x+12

Answer 1

13x + 7x = 12 + 23 + 45
20x = 80
x= 80/20
x= 4

Answer 2

Olá NathyMenezes12 !

$13x - 23 - 45 = - 7x + 12 \\ 13x + 7x = 12 + 23 + 45 \\ 20x = 80 \\ x = \frac{80}{20} \\ x = 4$

Tenha bons estudos !