1
Question
Find the value of expression:
2a - 2b - 10 + 4a + b, if a = 5 and b = 1.
Find the value of expression:
2a - 2b - 10 + 4a + b, if a = 5 and b = 1.
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Solution
The correct option is B 19
Simplify the expression:2a−2b−10+4a+b
=(2a+4a)+(−2b+b)−10=6a−b−10
Substituting a=5 and b=1 in the above expression,
6a−b−10
=(6×5)−1−10
=30−11
=19
19
Simplify the expression:2a−2b−10+4a+b
=(2a+4a)+(−2b+b)−10=6a−b−10
Substituting a=5 and b=1 in the above expression,
6a−b−10
=(6×5)−1−10
=30−11
=19
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