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rewona [7]
2 years ago
7

Solve 4x + 6 = 20.

Mathematics
1 answer:
Bond [772]2 years ago
6 0

Answer:

x = 11 or x = -1

Step-by-step explanation:

4|x + 6| = 20

4x - 24 = 20

4x = 20 + 24

x = 44/4

x = 11

Or

4x + 24 = 20

4x = 20 - 24

x = -4 / 4

x = -1

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Solve the system of equations. y=23x–19 x2–y= – 6x–23 Write the coordinates as integers, simplified proper or improper fractions
forsale [732]

Answer:

(3, 50) and (14,303)

Step-by-step explanation:

Given the system of equations;

y=23x–19 ....1

x²–y= – 6x–23 ...2

Substitute 1 into 2;

x²–(23x-19)= – 6x–23

x²–23x+19= – 6x–23 .

x²-23x + 6x + 19 + 23  = 0

x² - 17x + 42 = 0

Factorize;

x² - 14x - 3x + 42 = 0

x(x-14)-3(x-14) = 0

(x-3)(x-14) = 0

x = 3 and 14

If x = 3

y = 23(3) - 19

y = 69-19

y = 50

If x = 14

y = 23(14) - 19

y = 322-19

y = 303

Hence the coordinate solutions are (3, 50) and (14,303)

8 0
3 years ago
What is the solution of the system? Use elimination.
Anit [1.1K]
Note that if we add each side of the 2 equations, y will cancel out:

-12x-y+(17x+y)=6+4

5x=10

x=2


Substituting x=2 in either of the equations, we find the value of y.

Let's use the first equation:

-12x-y=6

-24-y=6

-y=24+6

-y=30, so y=-30.

Thus, the solution is (2, -30)

Answer: C
6 0
3 years ago
Is proportional or not?
Eduardwww [97]

top four are yes yes no yes

8 0
3 years ago
Distribute a negative -(5.5q+7)
Ipatiy [6.2K]

Hi there! :)

Answer:

\huge\boxed{-5.5q - 7}

-(5.5q + 7)

Distribute:

-(5.5q) -(7)

-5.5q - 7

7 0
4 years ago
Read 2 more answers
Help please!!!!!!!!!​
devlian [24]

Answer:

YOU not smartYOU DONT KNOW THIS HA HA NOT HELPING YOU BOT.

Step-by-step explanation:

4 0
3 years ago
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