Question

15x+(-6x+5)-2-(-x+3=-(7x+23)-x+(3-2x)

Answer 1

Respuesta:

$15x + ( - 6x + 5) - 2 - ( - x + 3) = - (7x + 23) - x + (3 - 2x) \\ 15x - 6x + 5 - 2 + x - 3 = - 7x - 23 - x + 3 - 2x \\ 10x + 5 - 5 = - 10x - 20 \\ 10x +0 = - 10x - 20 \\ 10x +10x = - 20 \\ 20x = - 20 \\ x = - 20 \div 20 \\ x = - 1$