1、1/2x=(95-x)x1/3 2、(1/2-9)X1/5=X-9 3、1/4x+(2800-x)X1/5=2800
1个回答
(1/2+1/3)x =95× 1/3,x=38.
(1/4 - 1/5)× x =2800 - 210- 2800 × 1/5 ,x=2800.
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解二元一次方程1.x/4+y/3=4/3 5(x-9)=6(y-2) 2.x+y=2800 96%x+64%y=2800
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(3)x-3/2=1 (3)3(3x-3)<2(2x-5)9x-9<4x-109x-4x<-10+95x<-1x<-5分
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8x-3=9+5x.5x+2(3x-7)=9-4(2+x).[x−1/4−2x+16=1
3y-1/2=1/3 x-8=2x+7 2x=5x-1 9-10x=9x-10 4/5x=5x-21
1/2x3+1/3x4+1/4x5.+1/9x10
9(x-3)(x+4)=(2x-1)(2x+1)+5(x-2)^2
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1/4x-1/2=3/4;7x-5/4=3/8;2x-1/6=5x+1/8;1/2x-7=9x-2/6;1/5x-1/2