x + 2y = 7
y - 2y = - 5
- y = - 5
y = 5
x + 2.5 = 7
x + 10 = 7
x = 7 - 10
x = - 3
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
x + 2y = 7
y - 2y = - 5
y - 2y = - 5
- y = - 5
y = 5
x + 2y = 7
x + 2.5 = 7
x + 10 = 7
x = 7 - 10
x = - 3