6*4x+x-5 = 7*3x+4*5y-15=化简急6*4x+x-5 = 7 *3x+4*5y-15=_数学解答

6*4x+x-5 = 7*3x+4*5y-15=
化简急
6*4x+x-5 = 7 *3x+4*5y-15=

人气：243 ℃　时间：2020-04-24 09:56:27

解答

6*4x+x-5 = 7*3x+4*5y-15
24X+X-5=21X+20Y-15
25X-5=21X+20Y-15
25X-5-21X-20Y+15=0
4X-20Y+10=0
2X-10Y+5=0两道题6*4x+x-5 = 24X+X-5=25X-5 7*3x+4*5y-15=21X+20Y-15