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Wilson
Mathematics
23 September, 06:11
How do you check 1 - x = 16 - 4x when the x is 5?
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Jamal Jenkins
23 September, 06:34
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Simply
1 - x = 16 - 4x when the x is 5:
Substitute x for 5, by replacing x with 5.
1 - (5) = 16 - 4 (5)
1 - 5 = 16 - (4 * 5)
1 - 5 = 16 - 20
-4 = - 4
LHS - RHS
It is better to show this by doing each side individually - Left Hand Side (LHS) and Right Hand Side (RHS).
LHS
1 - x when x = 5
1 - 5 = - 4
RHS
16 - 4x when x = 5
16 - 4 (5) = 16 - 20 = - 4
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