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worty [1.4K]
3 years ago
8

What is the solution to the equation 4x-2=18​

Mathematics
2 answers:
lesantik [10]3 years ago
6 0

Answer:

x=5

Step-by-step explanation:

4x-2=18  Isolate the variable

   +2 +2

4x=20 Divide:

x=5

Check: 4(5)-2=18

              20-2=18

                 18=18

Hope this helps :)

garri49 [273]3 years ago
3 0

Answer:

x = 5 so its 4x5-2=18

Step-by-step explanation:

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84 - c

Step-by-step explanation:

The correct expression would be 84 - c

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What is the area of the following circle? use 3.14 for pi and label your answer in units squared or square units.
Alenkinab [10]

Answer:

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Step-by-step explanation:

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Please help with homework! thank you!!
KatRina [158]

Answer:

If 22 is an option, go with it. I am pretty certain it is correct.

Step-by-step explanation:

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3 years ago
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Which of the following is a solution of x2 + 6x = −18? x = 3 − 3i x = −3 + 3i x = −6 + 3i x = 6 − 3i
Marina86 [1]

Step 1 ) Move all terms right side of the equation.

\displaystyle\ x^{2} + 6x = -18

\displaystyle\ x^{2} + 6x + 18 = -18 + 18

\displaystyle\ x^{2} +6x + 18 = 0

Step 2 ) Apply quadratic formula. (Note: There are 2 solutions)

\displaystyle\ x^{2} +6x + 18 = 0

\displaystyle\ x = \frac{-b\sqrt{b^{2}-4ac}}{2a}, \displaystyle\ x = \frac{-b-\sqrt{b^{2}-4ac}}{2a}

\displaystyle\ x = \frac{-6+\sqrt{6^{2}-4 * 18}}{2} , \displaystyle\ x = \frac{-6-\sqrt{6^{2}-4*18}}{2}

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Step 3 ) Simplify.

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\displaystyle\ x = \frac{-6-6i}{2}

\displaystyle\ x = -3+ 3i,

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Since the options only provide one of the answer we found, the answer is...

\displaystyle\ x = -3 - 3i

•

•

- <em>Marlon Nunez</em>

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3 years ago
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The length of a rectangle is 8 feet more than its width. If the width is increased by 4 feet and the length is decreased by 5 fe
alexgriva [62]
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width increased by 4, that is,  (x + 4)
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