已知2x+y+3z=23(1),x+4y+5z=36(2),求x+2y+3z的值
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已知2x+y+3z=23(1),x+4y+5z=36(2),求x+2y+3z的值
已知2x+y+3z=23(1),x+4y+5z=36(2),求x+2y+3z的值
已知2x+y+3z=23(1),x+4y+5z=36(2),求x+2y+3z的值
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