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elena55 [62]
3 years ago
5

class="latex-formula">
Mathematics
2 answers:
Liula [17]3 years ago
8 0

\green{ \rule{50cm}{0.01cm}}

\red{ \rule{50cm}{0.01cm}}

\green{ \rule{50cm}{0.01cm}}

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

The value of x is :

  • - 8

\large \boxed{ \mathfrak{Explanation}}

let's solve ~

  • x - 17 =  - 25

  • x =  - 25 + 17

  • x =  - 8

\green{ \rule{50cm}{0.01cm}}

\red{ \rule{50cm}{0.01cm}}

\green{ \rule{50cm}{0.01cm}}

Sonbull [250]3 years ago
5 0
To solve this, add 17 to both sides:
x = -25 + 17
x = -8
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Solve this please .......​
nikdorinn [45]

Answer:

The sum of reciprocals is 2/3.

You don't need complex numbers to solve this, but if you try to find a and b you will need complex numbers.

Step-by-step explanation:

a+b = 2

a*b = 3

1/a + 1/b = x

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b + a = (a*b)(x)

2 = 3x

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let's solve the quadratic equation

a^2 - 2a + 3 = a^2 - 2a + 1 + 2 = (a - 1)^2 + 2 = 0

(a - 1)^2 = -2

a_1 - 1 = \sqrt{2}i\\a_1 = 1+\sqrt{2}i\\\\a_2 - 1 = -\sqrt{2}i\\a_2 = 1 - \sqrt{2}i\\

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8 0
2 years ago
Solve using the elimination method:<br> X-3y=7<br> 3x + 3y=9
sergij07 [2.7K]

Answer:

                        x=4\\\\y=-1

Step-by-step explanation:

Given Equation:

x-3y=7      Equation:1

3x + 3y=9     Equation:2

Dividing Equation:2 by '3' both the sides:

x+y=3      

or   x=3-y     Equation:3

Putting the vale of 'x' in Equation:1

                             x-3y=7

                          (3-y)-3y=7\\\\3-y-3y=7\\\\3-4y=7\\\\

Subtracting '3' both sides

                             -4y=7-3\\\\-4y=4

                                 y=\frac{4}{-4}

                                 y=-1

Putting value of 'y' in Equation:3

                                x=3-y

                                x=3-(-1)\\\\x=3+1\\\\x=4

The solution of the equations is :

                              x=4\\\\y=-1

7 0
3 years ago
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