请解答方程组:
(39)2x+y=5(40)x+y=7(41)2x+3y=12(42)2x+y=3ax+3y=72x-y=83x+4y=173x-5y=11(43)3x+y=82(44)...
(39)2x+y=5 (40)x+y=7 (41)2x+3y=12 (42)2x+y=3
ax+3y=7 2x-y=8 3x+4y=17 3x-5y=11
(43)3x+y=82 (44)3(x-1)=y+5 45 x/4+y/3=7 (46)x+y/3 +x-y/2=6
10x-11y=87 5(y-1)=3(x+5) 2/3x+y/2=14 3(x+y-)2(x-y)=28 展开
ax+3y=7 2x-y=8 3x+4y=17 3x-5y=11
(43)3x+y=82 (44)3(x-1)=y+5 45 x/4+y/3=7 (46)x+y/3 +x-y/2=6
10x-11y=87 5(y-1)=3(x+5) 2/3x+y/2=14 3(x+y-)2(x-y)=28 展开
1个回答
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询