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Snezhnost [94]
3 years ago
9

-5(x-5)=2(-4x+5) find x step by step please

Mathematics
1 answer:
pychu [463]3 years ago
6 0

Answer: -5

Step-by-step explanation:

-5(x-5)=2(-4x+5)

-5x + 25 = -8x +10

3x +25 = 10 (add 8 from both sides)

3x = -15 (subtract 25 from both sides)

x = -5 (divide 3 from both sides)

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Which of the values shown are potential roots of f(x)=3x^3-13x^2-3x+45? Select all that apply
GrogVix [38]
<h3>f(x)=3x³-13x²-3x+45</h3><h3>f(x)=3x³-9x²-4x²+12x-15x+45</h3><h3>f(x)=3x²(x-3)-4x(x-3)-15(x-3)</h3><h3>f(x)=(x-3)(3x²-4x-15)</h3><h3>f(x)=(x-3)(x-3)(3x+5)</h3><h2>f(x)=(x-3)²(3x+5)</h2>

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5 0
2 years ago
Miguel bikes 23 km per hour and starts at mile 10. Gabby bikes 28 km per hour and starts at mile 0. Which system of linear equat
7nadin3 [17]
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8 0
3 years ago
Read 2 more answers
Divide (18x^3 + 12x – 3x) ÷ 6x^2
andre [41]
First let's simplify it

\frac{18x^3 + 9x}{6x^2}

Now let's factor it
\frac{9x(2x^2 + 1)}{6x^2}

Lastly, let's simplify
\frac{3(2x^2 + 1)}{2x}

4 0
3 years ago
7x + 2y=24<br> 8x + 2y=30
Bumek [7]

Answer:

x=6 y=-9

Step-by-step explanation:

  • Layer the equations on each other as you would in a subtraction problem:

               8x + 2y=30

               7x + 2y=24  

  • Subtract the equation just like you would normally. This should leave 1x=6 or x=6.
  • Now that you have your x value, plug it in as x for one of the equations. For the 2nd equation, this leaves:

               42+2y=24 then

               2y=-18 then

               y=-9

  • Double check your y value by plugging x=6 into the first equation. This should also leave y=-9.

3 0
3 years ago
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