(4Y+20)/4=(6Y-20)+2两边同时乘以4得4Y+20=24Y-72移项得24Y-4Y=20+7220Y=92Y=4.6 (4Z+20)/4=(6Z-20)-2两边同时乘以4得4Z+20=24Z-88移项得24Z-4Z=20+8820Z=108Z=5.4
(4X+20)/4=(6X-20)/5怎么解,要步骤,清楚点,谢谢.
(4Y+20)/4=(6Y-20)+2两边同时乘以4得4Y+20=24Y-72移项得24Y-4Y=20+7220Y=92Y=4.6 (4Z+20)/4=(6Z-20)-2两边同时乘以4得4Z+20=24Z-88移项得24Z-4Z=20+8820Z=108Z=5.4