Question

equação de 1° grau

x / 2 + 1 - x / 5 = 1 / 2​

Answer 1

(1/2).x + 1 - (1/5).x = 1/2

(1/2).x - (1/5)x = 1/2 - 1

(5/10).x - (2/10).x = 1/2 - 2/2

(3/10).x = - 1/2

(3/5).x = - 1

3x = - 5

x = - 5/3

Resposta: - 5/3

Answer 2

x/2 + 1-x/5 = 1/2 =======> *(10)mmc

10x/2 + 10(1-x)/5 = 10/2

5x + 2(1-x) = 5

5x +2-2x = 5

3x = 5 -2

3x = 3

x = 1 ✓