解二元一次方程组计算题.pdf

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1、解二元一次方程组计算题1.3x+y=342x+9y=812．．3．．4.9x+4y=358x+3y=305．．6．7.7x+2y=527x+4y=62．8．9．10.4x+6y=549x+2y=8711．．12．13.2x+y=72x+5y=1914．．15．16.x+2y=213x+5y=5617．．18．．19.5x+7y=525x+2y=2220．．21．22.5x+5y=657x+7y=20323．．24．．25.8x+4y=56x+4y=2126．27.28.5x+7y=415x+8y=4429．．30．31.7x+5y=543x+4y=3832．33．．.

2、x+8y=1534.4x+y=2935．．．3637.3x+6y=249x+5y=4638．39．40.9x+2y=624x+3y=3641．．42．15.9x+4y=467x+4y=4244．45．46.9x+7y=1353x+8y=514x+7y=9548.x+6y=2747.4x+y=419x+3y=9949.9x+2y=382x+3y=73x-2y=750.51.3x+6y=183x+y=72x-3y=3．．52.5x+5y=4553.8x+2y=28x+6y=143x+3y=2754.7x+9y=697x+8y=6255.7x+4y=675x+3y=857.

3、6x-7y=5x+2y=456.3x+5y=82x+8y=2658.5x+4y=524x-3y=1860.x-2y=559.x+3y=-57x+6y=742x-y=861.7x+y=962.3x-2y=563.3x-5y=24x+6y=167x-4y=112x-y=364.6x+6y=48y-3x=266.10x-8y=146x+3y=4265.x-2y=6x+y=555.8x+2y=169x-3y=123x-5y=27x+y=1168.2x+y=669.2x-y=3..70.4x+9y=778x+6y=9471.4x+7y=3x+y=072.3x+y=107x-y=

4、2073.44x+10y=27x+y=174.8x-y=0x+y=1875.11x-y=1211y-x=-1276.5x+6y=272x+3y=1277.7x-2y=4x+2y=1278.(2x+y)-5y=22x-5y=079.7x-3y=33x+2y=2180.7x+2y=21y-6x=181.10x-8y=03x-2y=282.3x+y=105x-7y=883.3x-2y=1x-y=347.x+3y=-53x-4y=-248.5x+3y=22x-y=3..49.2x+3y=73x+2y=350.3x+2y=18x+y=788.2x-5y=1x+y=389.x+8

5、y=4425x+6y=48090.3x-2y=57x-4y=11．.