Answer:
x=3
Step-by-step explanation:
This is a proportional equation:
Given: x/9=9/27
Cross-multiply: 27x=81
Divide: x=3
So x=3
I hope this helps you
-7.x^3=2.7.9
x^3=-18
x=i.(3square root of 18)
The correct answer is: [A]: " 2" .
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Explanation:
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5x - 4 = 3x ;
Subtract "3x" from each side of the equation;
5x - 4 - 3x = 3x - 3x ;
2x - 4 = 0 ;
Add "4" to each side of the equation;
2x - 4 + 4 = 0 + 4 ;
2x = 4 ;
Divide each side of the equation by "2" :
2x / 2 = 4 / 2 ;
x = 2 ; which is: "Answer choice: [A]: " 2" .
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