50道二元一次方程组答案及过程（每一步得要详细）

Question

50道二元一次方程组答案及过程（每一步得要详细）

Answer 1

1.2x+9y=81 3x+y=34 2.9x+4y=35 8x+3y=30 3.7x+2y=52 7x+4y=62 4.4x+6y=54 9x+2y=87 5.2x+y=7 2x+5y=19 6.x+2y=21 3x+5y=56 7.5x+7y=52 5x+2y=22 8.5x+5y=65 7x+7y=203 9.8x+4y=56 x+4y=21 10.5x+7y=41 5x+8y=44 11.7x+5y=54 3x+4y=38 12.x+8y=15 4x+y=29 13.3x+6y=24 9x+5y=46 14.9x+2y=62 4x+3y=36 15.9x+4y=46 7x+4y=42 16.9x+7y=135 4x+y=41 17.3x+8y=51 x+6y=27 18.9x+3y=99 4x+7y=95 19.9x+2y=38 3x+6y=18 20.5x+5y=45 7x+9y=69 21.8x+2y=28 7x+8y=62 22.x+6y=14 3x+3y=27 23.7x+4y=67 2x+8y=26 24.5x+4y=52 7x+6y=74 25.7x+y=9 4x+6y=16 26.6x+6y=48 6x+3y=42 27.8x+2y=16 7x+y=11 28.4x+9y=77 8x+6y=94 29.6x+8y=68 7x+6y=66 30.2x+2y=22 7x+2y=47 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：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：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：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