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Question
Simplify this expression and find its value if x = 3, a = −1, b = −2.
10 - 3b - 4 - 5b
Solution
10 - 3b - 4 - 5b on putting b = -2 in the given equation
= 10 - 4 - 3b - 5b
= 6 - 8b
= 6 - 8 × (-2)
= 6 + 16
= 22
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