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rewona [7]
3 years ago
6

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion

Mathematics
2 answers:
melomori [17]3 years ago
5 0

Answer:

4x - 6 = 3x + 8.

Step-by-step explanation:

If the number is x then 4 times is 4x , then - 6 gives us 4x - 6.

Similar reasoning gives us 3x + 8.


zavuch27 [327]3 years ago
4 0
4x - 6 = 3x + 8 is the answer.
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a rectangle has a length of (x+3) centimeters and a width of 1/2x centimeters. If the perimeter is 24 centimeters, what is the l
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Answer:

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Step-by-step explanation:

Given: The length of rectangle(l) = (x+3) cm and a width of rectangle (w) = \frac{1}{2} x cm a

Also, perimeter of rectangle is 24 cm.

Perimeter of rectangle is to add the lengths of all the four sides.

Perimeter of rectangle (P) is given by;

P=2(l+w)

Substituting the value of P = 24 cm , l = (x+3) cm and w =\frac{1}{2} x

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24 = 2 (x+3+\frac{1}{2} x)

Divide by 2 both sides of an equation;

12 = x+3+\frac{1}{2}x

Combine like terms;

12 =\frac{3x}{2} +3

Subtract 3 from both the sides we get;

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Simplify:

9 =\frac{3x}{2}

Multiply both sides by \frac{2}{3} we get

x = 9 \times \frac{2}{3} = 3 \times 2 = 6

Therefore, length of rectangle(l) = (x+3) = 6+3 = 9 cm

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