Question

初一计算题、解方程题、解方程应用题各20道

Answer 1

解方程1)87x+2y=773320x+32y=4364答案：x=87 y=822)44x+60y=634015x+42y=4122答案：x=20 y=913)11x+74y=354871x+45y=4730答案：x=40 y=424)53x+54y=322970x+43y=2877答案：x=11 y=495)43x+9y=80176x+16y=1420答案：x...