初二数学二元一次方程组专项练习题 93.docx

初二数学二元一次方程组专项练习题 93.docx

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初二数学二元一次方程组专项练习题初二数学二元一次方程组专项练习题939ab62x9y183a6b15x8y197x8y569m4b94y5x56-4m4b18a5b55xy09a4b195x8y62x5y1410.9x0.4y3.3y3x1410.1x0.9y1.69a9b73x7y2a7b137x8y47x6y1377m7b24y4x137-2m7b228a6b52x7y-86a8b103x7y-74x2y-100.3x0.1y3.49y3x-100.9x0.7y24a9b28x8y176a7b208x5y59x7y325m5b176y7x32-10m4b244ab103x9y10a3b186x7y-99x7y680.7x0.7y2.86y4x680.5x0.5y2.12a4b167xy15ab105x7y185x9y1318m9b30y5x131-1m2b82a6b10x6y29a4b178x7y-46x8y-100.1x0.8y1.53y9x-100.2x0.9y26a8b169x2y42a2b185x3y208x2y942m5b154y5x94-9m7b188a8b148x8y105a8b44x7y35x9y1110.7x0.7y1.5y8x1110.1x0.7y2.73a6b59x3y105a6b48x2y136x9y243m2b28y7x24-7mb148a3b147x3y108a2b93x6y-97x9y1710.8x0.4y2.99y6x1710.6x0.2y1.94a6b182x6y34a6b175x5y35x7y1027m9b64y4x102-1m6b179a4b84x7y-84ab29x9y5x3y270.6x0.1y32y7x270.2x0.2y3.45a2b67x2y53a9b45x5y74x9y1024mb118y6x102-9mb223a3b136x3y23a8b146x4y-2xy1750.6x0.2y3.12y5x1750.4x0.3y48ab94x4y29ab77x4y147x2y2003m3b285y8x200-4m6b64a2b66x8y28ab19x7y2x3y1100.7x0.7y0.44y4x1100.5x0.7y4