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Setler [38]
3 years ago
11

What is 18=3(3x-6) algebra 1

Mathematics
2 answers:
katrin [286]3 years ago
6 0

Answer:

x=4 i believe

Step-by-step explanation:

1st.      move terms

       -3x+6=-6

2nd.      calculate the difference

       -3x=-12

3rd.     divide both side to get x alone

      x= 4

murzikaleks [220]3 years ago
3 0

Answer:

Simplifying

18 = 3(3x + -6)

Reorder the terms:

18 = 3(-6 + 3x)

18 = (-6 * 3 + 3x * 3)

18 = (-18 + 9x)

Solving

18 = -18 + 9x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-9x' to each side of the equation.

18 + -9x = -18 + 9x + -9x

Combine like terms: 9x + -9x = 0

18 + -9x = -18 + 0

18 + -9x = -18

Add '-18' to each side of the equation.

18 + -18 + -9x = -18 + -18

Combine like terms: 18 + -18 = 0

0 + -9x = -18 + -18

-9x = -18 + -18

Combine like terms: -18 + -18 = -36

-9x = -36

Divide each side by '-9'.

x = 4

Simplifying

x = 4

Step-by-step explanation:

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Perpendicular to y=1/2-1, x-intercept at4
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Answer:

it would be Y= -2x+4

Step-by-step explanation:

To begin, we know that the b value is 4, because that is the x-intercept that is information given, so we can atomatically put that in.

Next we need to find the m value, which can be found by knowing the rules of a perpendicular eqution. to change it you must change the 1/2 and flip the equation and change the signs

soooooo  1/2 would change into 2/1   which is 2 and we would addd the negative sign so

Y=-2x+4

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Es urgente ¡¡¡ si la MH de a y 4 es 6 y la MH de 8 y b es 12 calcula la MH de a y b
TiliK225 [7]

Answer:

Sabemos que:

MH(x, y) = \frac{2xy}{x+y}

y tenemos que:

MH (a,4) = \frac{2*a*4}{a+4} = \frac{8*a}{a+4} = 6

Con esto podemos encontrar el valor de a:

8*a/(a+ 4) = 6

8*a = 6*(a + 4) = 6*a + 24

8a - 6a = 24

2a = 24

a = 24/2 = 12.

Tambien sabemos que:

MH(8,b) = \frac{2*8*b}{8+b} =\frac{16*b}{8+b} = 12

Y de ahí podemos despejar b:

(16*b)/(b + 8) = 12

16*b = 12*(b + 8) = 12b + 96

16b - 12b = 96

4b = 96

b = 96/4 = 24

Entonces tenemos a = 12 y b = 24, y el MH de a y b es:

MH(12,24) = 2*12*24/(12 + 24) = 24*24/36 = 16

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3 years ago
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