Solve for x: 2 over 3 (x - 2) = 4x. A. negative 2 over 5 B. negative 5 over 2 C. 2 over 5 D. 5

Mathematics

2 answers:

DochEvi [55]3 years ago

7 0

4x=2/3(x - 2)
4x=2/3x - 4/3
4x - 2/3x=4/3
4x - 2/3x=-4/3
10/3x=-4/3
x=-4/3 * 3/10

x=-12/30
x=- 2/5
hope this helps

xeze [42]3 years ago

6 0

2/3(x - 2) = 4x....distribute thru the parenthesis
2/3x - 4/3 = 4x...subtract 2/3x from both sides
-4/3 = 4x - 2/3x
-4/3 = 12/3x - 2/3x
-4/3 = 10/3x
-4/3 * 3/10 = x
-12/30 = x
- 2/5 = x <==

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Question :-

DochEvi [55]

$\qquad\qquad\huge\underline{{\sf Answer}}$

Let's solve ~

$\qquad \sf \dashrightarrow \: \bigg( \dfrac{1}{ \sqrt{7 + \sqrt{5} } } + \sqrt{7 + \sqrt{5} } \bigg) {}^{2}$

$\qquad \sf \dashrightarrow \: \bigg( \dfrac{1}{ \sqrt{7 + \sqrt{5} } } \bigg ) {}^{2} + \bigg( \sqrt{7 + \sqrt{5} } \bigg) {}^{2} + 2 \cdot \dfrac{1}{ \sqrt{7 + \sqrt{5} } } \cdot \sqrt{7 + \sqrt{5} }$