To evaluate the expression 6-b/3a, for a = 10 and b = -9, we substitute the given values into the expression:
6-(-9)/3(10)
Since -(-9) equals 9, the expression becomes:
6 + 9/3(10)
Next, we simplify the expression within the parentheses:
6 + 9/30
To divide 9 by 30, we divide each number by their greatest common divisor, which is 3:
6 + 3/10
Finally, we can add the simplified fractions:
60/10 + 3/10
63/10
Therefore, 6-b/3a, for a = 10 and b = -9, equals 63/10.
6-b/3a, for a =10, b = -9
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