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3 votes
Please help I don't understand this

Solve for x
2/(9x) = 4/7

18/7
I don't know
- 18/7
7/18
- 7/18

User Khazratbek
by
8.1k points

1 Answer

3 votes
The correct answer is: [C]: "
(7)/(18)
" .
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Step-by-step explanation:
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Given:
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2 / (9x) = 4 / 7 ; solve for "x" ;
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Cross-multiply:

→ (9x)*4 = 2 * 7 ;

→ 36x = 14 ;

Divide each side of the equation by "36" ;
to isolate "x" on one side of the equation; & to solve for "x" ;

→ 36x / 36 = 14 / 36 ;

x = 14/ 36 ;

→ x = 14/36 = (14÷2) / (36÷2) = 7/18 ;
______________________________________________________

The answer is: "
(7)/(18)
" ;

→ which is: Answer choice: [C]: "
(7)/(18)
" .
______________________________________________________
User JustDanyul
by
8.1k points

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