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It is known that the quadratic power of (a-3b) + √ 3A -- B -- 4 = 0, and the value of a + B is obtained
（a－3b）=0,3a-b-4=0 a=3/2,b=1/2 a+b=3/2+1/2=2
General score: B / 3A ^ 2C ^ 2, C / 2Ab, a / 5CB ^ 2
Firstly, the least common multiple of denominator is determined
Obviously 30A ^ 2B ^ 2C ^ 2
So the molecule is 10B ^ 3,15abc ^ 3,6a ^ 3C
So the three equations are divided into 10B ^ 3 / (30a ^ 2B ^ 2C ^ 2),
15abc^3/（30a^2b^2c^2）,6a^3c/（30a^2b^2c^2）
What is the ratio of minus 5 / 6 divided by minus 3 multiplied by minus 8
Negative 20 / 9
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