Question

x-(4-x)=3+(5-x)


ayuda!!!!!

Answer 1

Respuesta:

$x - (4 - x) = 3 + (5 - x) \\ x - (4 - x) = 3 + 5 - x \\ x - (4 - x) = - x + 8 \\ \\ - (4) - ( - x) = - x + 8 \\ x - 4 + x = - x + 8 \\ 2x - 4 = - x + 8 \\ 2x - 4 + 4 = - x + 8 + 4 \\ 2x = - x + 12 \\ 3x = 12 \\ x = 4$

Answer 2

$\bf{x - (4 - x) = 3 + (5 - x)} \\ x - 4 + x = 3 + 5 - x \\ 2x - 4 = 8 - x \\ 2x - x = 8 + 4 \\ 3x = 12 \\ x = 12 \div 3 \\ x = 4$