irinakz7878
Answered

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63 :(5X - 3X - 1)=21:3​

Sagot :

Answer:

x = 5

Step-by-step explanation:

Given that,

[tex]63:(5x-3x-1)=21:3\\\\or\\\\\dfrac{63}{(5x-3x-1)}=\dfrac{21}{3}\\\\\dfrac{63}{(2x-1)}=7[/tex]

Cross multiplying both sides,

[tex]63=7(2x-1)\\\\9=2x-1[/tex]

Taking like terms together,

[tex]10=2x\\\\x=5[/tex]

So, the value of x is equal to 5.

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