3x+8y-9x+67+8y

3x+8y-9x+67+8y =6x+16y+67

3x+8y-9x+67+8y =6x+16y+67 dasz naj?

3x+8y-9x+67+8y= 3x-9x+8y+8y+67= -6x+16y+67 Proszę o naj ;)