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To find the mean of the expressions (3x + 5x - 9) and (5x + 12), first simplify them. The first expression simplifies to (8x - 9) and the second remains (5x + 12). The mean is calculated by averaging these two:
[ \text{Mean} = \frac{(8x - 9) + (5x + 12)}{2} = \frac{13x + 3}{2} ]
Thus, the mean is (\frac{13x + 3}{2}).
What else can I help you with?
What is the answer for -3x-5x12-5x-5x?
To simplify the expression (-3x - 5x \cdot 12 - 5x - 5x), first calculate (5x \cdot 12), which equals (60x). Then, combine the terms: (-3x - 60x - 5x - 5x) simplifies to (-73x). Therefore, the answer is (-73x).
What is (5X-6) - (3X 12)?
To simplify the expression (5X - 6) - (3X + 12), first distribute the negative sign: (5X - 6) - 3X - 12. Then combine like terms: 5X - 3X - 6 - 12, which simplifies to 2X - 18. Thus, the final expression is 2X - 18.
What is 5x-10 equals 3x plus 2?
5x - 10 = 3x + 2 5x - 3x = 2 + 10 2x = 12 x = 12/2 x = 6
What is 5x+2+3x?
If you mean: 5x(3x+2)-8x-7x then the expression can be simplified to 15x^2 -5x
What is the value of x in 6-3x equals 5x-10x plus 12?
6x - 3x = 5x - 10x + 12 6x - 3x - 5x + 10x = 12 8x = 12 8x/8 = 12/8 x = 12/8 = 3/2 x = 1.5
What is the answer for -3x-5x12-5x-5x?
To simplify the expression (-3x - 5x \cdot 12 - 5x - 5x), first calculate (5x \cdot 12), which equals (60x). Then, combine the terms: (-3x - 60x - 5x - 5x) simplifies to (-73x). Therefore, the answer is (-73x).
What is (5X-6) - (3X 12)?
To simplify the expression (5X - 6) - (3X + 12), first distribute the negative sign: (5X - 6) - 3X - 12. Then combine like terms: 5X - 3X - 6 - 12, which simplifies to 2X - 18. Thus, the final expression is 2X - 18.
What is 5x-10 equals 3x plus 2?
5x - 10 = 3x + 2 5x - 3x = 2 + 10 2x = 12 x = 12/2 x = 6
What is 3x plus 2x subtracts 12 equals?
(3x + 2x) -12 =5x-12 the answer is 5x-12 it is just a simple case of simplifying
What is 5x+2+3x?
If you mean: 5x(3x+2)-8x-7x then the expression can be simplified to 15x^2 -5x
What is the value of x in 6-3x equals 5x-10x plus 12?
6x - 3x = 5x - 10x + 12 6x - 3x - 5x + 10x = 12 8x = 12 8x/8 = 12/8 x = 12/8 = 3/2 x = 1.5
What is 5x-4-3x 9 equivialent to?
if you mean 5x-4-3x=9 then x= 6.5
What is the answer to 5x equals 3x plus 12?
2x-12
What is 5x(3x 2)-8x-7x?
If you mean: 5x(3x+2)-8x-7x then the expression can be simplified to 15x^2 -5x
How do you simplify 5x-6 plus 3x plus 12?
5x-6+3x+128x-6+128x+6
Can you factorise 2x2-3x plus 8x-12?
Do you mean 2x²? Assuming this is the case: 2x² - 3x + 8x - 12 = 2x² + 5x - 12 = (2x - 3)(x + 4)
What is the sum of this equation -5x plus y equals -12 -3x plus 6y equals -12?
-5x + y = -12- 3x + 6y = -12Since both of expressions have a value of -12, their sum is - 24. This is true only whenx = 20/9 and y = -8/9.-5x + y = -12y = 5x - 12- 3x + 6y = -12-3x + 6(5x - 12) = -12-3x + 30x - 72 = -1227x = 60x = 60/27x = 20/9y = 5x - 12y = 5(20/9) - 12y = 100/9 - 12y = (100 - 108)/9y = -8/9
