Question

$\frac{3x+3}{2} + \frac{x-3}{2} = 12+5-7+8$
Qual o valor de x?

Answer 1

$\frac{3x+3}{2} + \frac{x-3}{2} = 12+5-7+8$

3x+3+x-3=24+10-14+16

4x+3-3=24+10-14+16

4x=34-14+16

4x=20+16

4x=36

x=36/4

x=9

Answer 2

Resposta:

x=9

Explicação passo-a-passo:

$\frac{(3x+3) + (x-3)}{2} = 18$

$\frac{4x}{2} = 18$

x = (18.2) 4

x= 9