求30道一元一次不等式组计算题,20道不等式组应用题,30道二元一次方程,
<p>问题：求30道一元一次不等式组计算题,20道不等式组应用题,30道二元一次方程,<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">孙炳彤的回答：<div class="content-b">网友采纳 66x+17y=396725x+y=1200答案：x=48y=47(2)18x+23y=230374x-y=1998答案：x=27y=79(3)44x+90y=779644x+y=3476答案：x=79y=48(4)76x-66y=408230x-y=2940答案：x=98y=51(5)67x+54y=854671x-y=5680...
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