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13) maths equations answer??.. .

13) maths equations answer??.. .-example-1
User Masty
by
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2 Answers

4 votes

Answer:

x =
(7)/(2)

Explanation:

Given


(3x)/(x-2) = 7 ( multiply both sides by x - 2 )

3x = 7(x - 2) ← distribute

3x = 7x - 14 ( subtract 3x from both sides )

0 = 4x - 14 ( add 14 to both sides )

14 = 4x ( divide both sides by 4 )


(14)/(4) = x , that is

x =
(7)/(2)

User IndieBoy
by
4.7k points
2 votes

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(3x)/(x - 2) = 7 \\

Multiply sides by ( x - 2 )


(x - 2) * (3x)/(x - 2) = (x - 2) * 7 \\

Simplification


3x = 7x - 14

Subtract sides 7x


- 7x + 3x = - 7x + 7x - 14

Simplification


- 4x = - 14

Negatives simpliflies


4x = 14

Divide sides by 4


(4x)/(4) = (14)/(4) \\


x = (7)/(2) \\

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User Mzz
by
5.7k points