x-9=80,解得X=1。100-20x=20,解得X=4。55x-25x=60,解得X=2。76y-75=1,解得Y=1。23y-23=23,解得Y=2。4x-20=0,解得X=5。80y+20=100,解得Y=1。53x-90=16,解得X=2。2x+9x=11,解得X=1。12y-12=24,解得Y=3。80+5x=100,解得X=4。7x-8
100-20x=20 55x-25x=60 76y-75=1 23y-23=23 4x-20=0 80y+20=100 53x-90=16 2x+9x=11 12y-12=24 80+5x=100 7x-8=6 65x+35=100 19y+y=40 25-5x=15 79y+y=80 42x+28x=140 3x-1=8 90y-90=90 80y-90=70 78y+2y=160 88-x=80 9-4x=1 20x=40 65y-30=100...
0.4(x-0.2)+1.5=0.7x-0.38 x=6 30x-10(10-x)=100 x=5 4(x+2)=5(x-2)x=18 120-4(x+5)=25 x=18.75 15x+863-65x=54 x=16.18 3(x-2)+1=x-(2x-1)x=3/2 11x+-2x=100-9x x=2 14.59+x-25.31=0 x=10.72 x-48.32+78.51=80 x=49.81 820-16x=...
数学中的一元一次方程题目多种多样,但解题时需细心。如:1)30x - 10(10 - x) = 100,展开后得到30x - 100 + 10x = 100,合并同类项后得到40x = 200,因此x = 5。2)11x + - 2x = 100 - 9x,整理得18x = 36,x = 2。再看一个复杂一点的:3)5(2x - 3) + 4 = 3x...
11x+-2x=100-9x;15-(8-5x)=7x+(4-3x);3(x-7)-2[9-4(2-x)]=22;3/2[2/3(1/4x-1)-2]-x=2;2(x-2)+2=x+1;1.7(2x-1)-3(4x-1)=4(3x+2)-12.(5y+1)+ (1-y)= (9y+1)+ (1-3y)3.[ (- 2)-4 ]=x+24.20%+(1-20%)(320-x)=320×40%5.2(x-...
以下是10道一元一次方程的计算题:3x + 7 = 25 2(x - 4) = 10 frac{x}{3} - frac{x}{4} = 1 5x - 3 = 3x + 17 7x + 2 = 3x - 10 0.4x + 6 = x - 2.4 9 - 2x = x + 12 frac{2x - 1}{5} = frac{3x + 2}{4} 4(x + 3) = 3(x + 5) + 7 ...
一元一次方程题目示例:1. 2(x-2)-3(4x-1)=9(1-x)2. 11x+-2x=100-9x 3. 15-(8-5x)=7x+(4-3x)4. 3(x-7)-2[9-4(2-x)]=22 5. 2(x-2)+2=x+1 6. 0.4(x-0.2)+1.5=0.7x-0.38 7. 30x-10(10-x)=100 8. 4(x+2)=5(x-2)9. 120-4(x+5)=25...
51y-y=100 Y=2 85y+1=-86 Y=1 45x-50=40 X=2 10x+6=26 x=2 24:8x=1 x=3 8x+23=39 x=2 24:8x=1 x=3 8x+23=39 x=2 4x+9=21 x=3 6:2x=3 x=1 5x-3=2 x=1 6×+8=68 ×=10 2x=3+5 x=4 3x=x+1 x=1/2 ...
以下是一元一次方程的部分题目及其解析,由于篇幅,无法列出完整的50道题,但会提供多个不同类型的示例和解析方法。一、基础计算题 题目:4x = 24 解析:x = 24 ÷ 4 = 6题目:150x + 1700 = 2450 解析:150x = 2450 - 1700 = 750;x = 750 ÷ 150 = 5题目:0.52x - (1 - 0...
24-3X=3 10X*(5+1)=60 99X=100-X X+3=18 X-6=12 56-2X=20 4y+2=6 x+32=76 3x+6=18 16+8x=40 2x-8=8 4x-3*9=29 8x-3x=105 x-6*5=42 x+5=7 2x+3=10 12x-9x=9 6x+18=48 56x-50x=30 5x=15 78-5x=28 32y-29=3 5x+5=15 x-9=80 100-20x=20 ...