(7Y-3Z)-(8Y-5Z)化简
问题描述:
(7Y-3Z)-(8Y-5Z)化简
答
(7Y-3Z)-(8Y-5Z)
=7Y-3Z-8Y+5Z
=2Z-Y
(7Y-3Z)-(8Y-5Z)化简
(7Y-3Z)-(8Y-5Z)
=7Y-3Z-8Y+5Z
=2Z-Y