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1 vote
Solve for x.
9x/7=18

User Fpopic
by
8.6k points

2 Answers

1 vote
Answer: x = 14 .
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Step-by-step explanation:
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Method 1)
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9x / 7 = 18 ;

9x = 18 * 7 ;

Divide EACH SIDE of the equation by "9"; to isolate "x" on one side of the equation; and to solve for "x" ;
_____________________________
9x / 9 = 18 * 7 ;
9
_____________________________
x = 18 * 7 ;
9
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The "9" cancels out to a "1" ; and the "18" cancels to a "2" ;

since "18 ÷ 9 = 2" ; and "9 ÷ 9 = 1" ;

so rewrite as:

x =
(2*7)/(1) = 2 * 7 = 14 .

x = 14 .
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Method 2)
_________________________________________
9x / 7 = 18 ;

9x = 18 * 7 ;

9x = 126 ;

Divide EACH SIDE of the equation by "9" ; to isolate "x" on one side of the equation; and to solve for "x" ;
______________________________________
9x / 9 = 126 / 9 ;
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x = 14 .
______________________________________

User ATMathew
by
8.0k points
3 votes
(9x)=18*7
9x=126
hence dividing through by 9 gives
x=14
User Logard
by
8.6k points

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