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3 years ago

What is the solution to this equation? 2x+3=x-4

Mathematics

1 answer:

g100num [7]3 years ago

4 0

Answer:

x = -7

Step-by-step explanation:

2x+3 = x-4

2x-x = -4-3

x = -7

hope it helps ☺️

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OlgaM077 [116]

The answer is 6

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2 years ago

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Given that the quadratic equation has equal roots (k^2-1)x^2-2kx-3k-1=0

Alik [6]

Answer:

(See explanation for further details)

Step-by-step explanation:

The real expression is:

$(k^{2}-1)\cdot x{{2} - 2\cdot k \cdot x - 3\cdot k + 1 = 0$

The general equation for the second-order polynomial is:

$x = \frac{2\cdot k \pm \sqrt{4\cdot k^{2}-4\cdot (k^{2}-1)\cdot (-3\cdot k + 1)}}{k^{2}-1}$

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3 years ago

Please help me i need this answer asap

xxTIMURxx [149]

Answer:

Step-by-step explanation:

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3 years ago

tanya has 3 red marbles 7 blue marbles and 9 green marbles what expression can be used to to find the percent of tanyas marbles

stepladder [879]

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Step-by-step explanation:

Add all the colors together to get a TOTAL amount of ALL marbles.

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Divide the blue amount (7) by the total amount (19) for the specific percentage for that color.

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3 years ago

Michael cycled 36km in 3 hours.<br>Work out his avarage speed.

san4es73 [151]

Hello mate,
____________
$\\ speed = \frac{distance}{time } \\ average \: speed \: = \frac{36 \: km}{3 \: hr \: } \\ speed \: = 13 \frac{km}{hr}$

average speed = 13 km/he
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I hope it helps :-)

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3 years ago

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What is the solution to this equation? 2x+3=x-4​

What is the solution to this equation? 2x+3=x-4