初一数学一元一次方程计算题

(1) 66x+17y=3967 25x+y=1200 答案：x=48 y=47 (2) 18x+23y=2303 74x-y=1998 答案：x=27 y=79 (3) 44x+90y=7796 44x+y=3476 答案：x=79 y=48 (4) 76x-66y=4082 30x-y=2940 答案：x=98 y=51 (5) 67x+54y=8546 71x-y=5680 答案腊态锋：x=80 y=59 (6) 42x-95y=-1410 21x-y=1575 答案：x=75 y=48 (7) 47x-40y=853 34x-y=2006 答案：x=59 y=48 (8) 19x-32y=-1786 75x+y=4950 答案：x=66 y=95 (9) 97x+24y=7202 58x-y=2900 答案：x=50 y=98 (10) 42x+85y=6362 63x-y=1638 答案：x=26 y=62 (11) 85x-92y=-2518 27x-y=486 答案：x=18 y=44 (12) 79x+40y=2419 56x-y=1176 答案：x=21 y=19 (13) 80x-87y=2156 22x-y=880 答案：x=40 y=12 (14) 32x+62y=5134 57x+y=2850 答案：x=50 y=57 (15) 83x-49y=82 59x+y=2183 答案：x=37 y=61 (16) 91x+70y=5845 95x-y=4275 答案：x=45 y=25 (17) 29x+44y=5281 88x-y=3608 答案：x=41 y=93 (18) 25x-95y=-4355 40x-y=2000 答案：x=50 y=59 (19) 54x+68y=3284 78x+y=1404 答案：x=18 y=34 (20) 70x+13y=3520 52x+y=2132 答案：x=41 y=50 (21) 48x-54y=-3186 24x+y=1080 答案：x=45 y=99 (22) 36x+77y=7619 47x-y=799 答案：x=17 y=91 (23) 13x-42y=-2717 31x-y=1333 答案：闭清x=43 y=78 (24) 28x+28y=3332 52x-y=4628 答案：x=89 y=30 (25) 62x-98y=-2564 46x-y=2024 答案：x=44 y=54 (26) 79x-76y=-4388 26x-y=832 答案：x=32 y=91 (27) 63x-40y=-821 42x-y=546 答案：x=13 y=41 (28) 69x-96y=-1209 42x+y=3822 答案：x=91 y=78 (29) 85x+67y=7338 11x+y=308 答案：x=28 y=74 (30) 78x+74y=12928 14x+y=1218 答案：x=87 y=83 (31) 39x+42y=5331 59x-y=5841 答案：x=99 y=35 (32) 29x+18y=1916 58x+y=2320 答案：x=40 y=42 (33) 40x+31y=6043 45x-y=3555 答案：x=79 y=93 (34) 47x+50y=8598 45x+y=3780 答案：x=84 y=93 (35) 45x-30y=-1455 29x-y=725 答案：x=25 y=86 (36) 11x-43y=-1361 47x+y=799 答案：x=17 y=36 (37) 33x+59y=3254 94x+y=1034 答案：轮晌x=11 y=49 (38) 89x-74y=-2735 68x+y=1020 答案：x=15 y=55 (39) 94x+71y=7517 78x+y=3822 答案：x=49 y=41 (40) 28x-62y=-4934 46x+y=552 答案：x=12 y=85 (41) 75x+43y=8472 17x-y=1394 答案：x=82 y=54 (42) 41x-38y=-1180 29x+y=1450 答案：x=50 y=85 (43) 22x-59y=824 63x+y=4725 答案：x=75 y=14 (44) 95x-56y=-401 90x+y=1530 答案：x=17 y=36 (45) 93x-52y=-852 29x+y=464 答案：x=16 y=45 (46) 93x+12y=8823 54x+y=4914 答案：x=91 y=30 (47) 21x-63y=84 20x+y=1880 答案：x=94 y=30 (48) 48x+93y=9756 38x-y=950 答案：x=25 y=92 (49) 99x-67y=4011 75x-y=5475 答案：x=73 y=48 (50) 83x+64y=9291 90x-y=3690 答案：x=41 y=92一元一次：1)12（2-3X）=4X+424-36X=4X+4-40X=-20X=1/2(2)6-3（X+2/3）=2/36-3X-2=2/3-3X=-10/3X=10/9(3)2（200-15X）=70+25X400-30X=70+25X-55X=-330X=6(4)3（2X+1）=126X+3=126X=9X=3/2(5)1/4X-1/2=3/4(1/4)X=5/4X=5(6)7X-5/4 =3/87X=13/8X=13/56(7)2X-1/6 = 5X+1/8-3X=7/24X=-7/72(8)(1/2)X-7 = 9X-2/6-(17/2)X=20/3X=-20/51(9)(1/5)X-1/2（3-2X）=1(1/5)X-3/2+X=1(6/5)X=5/2X=25/12(10)2X+(1/3)-5X-(1/6)=1-3X+(1/6)=1-3X=5/6X=-5/18(11)1/7（2X+14)=4-2X(2/7)X+2=4-2X(16/7)X=2X=7/8(12)3/10（200+X)-2/10(300-X)=300*9/25 60+(3/10)X-60+(1/5)X=108(1/2)X=108X=216 三元一次：（1）3x-y+z=3 2x+y-3z=11 5x+4z=143x-y+z=3x+y+z=12 4x+2z=158x+4z=303x=16,x=16/3,z=(15-64/3)/2=-19/6y=12-16/3+19/6=(72-32+19)/6=59/6(2)8x+2y-2z=24 3x+2y+z=5 5x-3z=193x+2y+z=52x-2y+10z=25x+11z=75x-3z=1914z=-12,z=-6/7,5x=19+18/7=151/7,x=151/35y=x+5z-1=151/35-150/35-1=-34/35(3)z=3x-1,y=3z-4=9x-3-4=9x-72x+63x-49=3,65x=46（4）x+y=3 2x-y+2z=2 x-y-z=3y=3-x,x-3+x-z=3,z=2x-62x-3+x+4x-12=2,7x=15+2=17,（5）x-2y-3z=-18 x+3y-2z-8=0 x+y+2z-24=0x+y+2z=243y+5z=42x+3y-2z=8x+y+2z=24-2y+4z=166y+10z=84-6y+12z=4822z=132,,z=6,,3y=42-30,y=4x=24-4-12=8别介意哈，我复制来的！