How do you simplify #2x-9y+7x+20y#?
Hazel Anglin9x + 11y
To simplify the expression collect 'like terms'.
ie. collect together the terms which contain the same variable by adding or subtracting their coefficients.
so 2x + 7x - 9y + 20y = ( 2 + 7 )x + (- 9 + 20 )y
= 9x + 11y
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Ethan AdkinsTo simplify the expression (2x - 9y + 7x + 20y), combine like terms:
(2x + 7x - 9y + 20y = (2x + 7x) + (-9y + 20y) = 9x + 11y)
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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