Help plzzz!! find the value of x

Mathematics

1 answer:

olga_2 [115]3 years ago

3 0

Step-by-step explanation:

In this given figure vertical opposite angles are equal

6x+7=8x-17

2x=24

X=12

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What is the solution to this system of equations? 4x + 5y = 7 3x – 2y = –12

oksano4ka [1.4K]

Answer:

x = -2 and y = 3

Step-by-step explanation:

It is given that,

4x + 5y = 7 -----(1)

3x – 2y = –12 ----(2)

To find the value of x and y

eq(1) * 3 ⇒

12x + 15y = 21 ----(3)

eq(2) * 4 ⇒

12x - 8y = -48 ---(4)

eq(3) - eq(4) ⇒

12x + 15y = 21 ----(3)

12x - 8y = -48 ---(4)

0 + 23y = 69

y = 69/23 = 3

Substitute the value of y in eq(1)

4x + 5y = 7 ----(1)

4x + 5*3 = 7

4x = 7 - 15 = -8

x = -8/4 = -2

Therefore x = -2 and y = 3

5 0

3 years ago

Find the area of the circle whose equation is x2+y2=6x-8y

Semenov [28]

Answer:

Given that the equation of a circle is :

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