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bazaltina [42]
3 years ago
8

(7+x)+7x=? equivalent expressions simplifying each expression

Mathematics
2 answers:
kolezko [41]3 years ago
8 0
It will be 8x+7
Hope this helps

Firlakuza [10]3 years ago
3 0
(7 + x) + 7x = ?

First, remove the parenthesis.

7 + x + 7x = ?

Add like terms.
Note: x = 1x

7 + 1x + 7x = 7 + 8x

Your answer is 7 + 8x, or 8x + 7.
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Answer:  see proof below

<u>Step-by-step explanation:</u>

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<u>Proof LHS → RHS</u>

\text{LHS:}\qquad \qquad \dfrac{1+\sec A}{\sec A}

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\text{Identity:}\qquad \qquad \dfrac{\sin^2 A}{1-\cos A}

\text{LHS = RHS:}\quad \dfrac{\sin^2 A}{1-\cos A}=\dfrac{\sin^2 A}{1-\cos A}\quad \checkmark

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