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2 years ago

11x-6=60 please give details

Mathematics

1 answer:

Dimas [21]2 years ago

6 0

Answer:

Step-by-step explanation:

11(6)-6=60

11 x 6 = 66

66-6 = 60

Therefore, x=6

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Solve the following equations;- x - 9 /√x + 3 =1

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Answer:

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Step-by-step explanation:

A equation is given to us and we need to find out the value of x . The given equation to us is ,

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Cross multiply ,

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Squaring both sides ,

$\sf\implies (x - 9)^2 = x + 3$

Simplify the whole square ,

$\sf\implies x^2+9^2-2.9.x = x +3 \\$

$\sf\implies x^2+81 - 18x = x -3$

Add 3 and subtract x on both sides ,

$\sf\implies x^2 -18x-x +81-3=0$

Simplify ,

$\sf\implies x^2 -19x +78=0$

Split the middle term of the quadratic equation,

$\sf\implies x^2-13x-6x+78=0$

Take out common ,

$\sf\implies x( x -13)-6(x-13)=0$

Take out ( x -13 ) as common ,

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Equate both factors to 0 ,

$\sf\implies \boxed{\pink{\sf x = 13,6}}$

Hence the value of x is 13 or 6 .

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