Question

é:
14. A solução que corresponde a equação 3x - 4 = 7/2 É:
A.2,5 b.3,5 c.4,5 d.5,5 e.6,5​

Answer 1

Explicação passo-a-passo:

3x - 4 = 7/2

2.(3x - 4) = 7

6x - 8 = 7

6x = 7 + 8

6x = 15

x = 15/6

x = 2,5

Letra A

Answer 2

Letra A

Mova a constante para a direita

$3x - 4 = \frac{7}{2} \\ \\ 3x = \frac{7}{2} + 4 \\ \\ 3x = \frac{15}{2} = x = \frac{5}{2} \\ </strong><strong> </strong></p><p><strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong> </strong><strong> </strong></p><p><strong> </strong><strong> </strong><strong> </strong><strong>x = 2.5$