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Elan Coil [88]
3 years ago
6

X=3y+18 5x+4y=-5 Solve in substition equations

Mathematics
1 answer:
s2008m [1.1K]3 years ago
5 0
X = 15x/4 + 57/4
Y = 5x/4 - 5/4
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Someone please help me
Gala2k [10]
The correct answer is, B. 1/5
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7 0
3 years ago
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What is the answer to the following problem:<br> 6÷2(1+2)=?
maksim [4K]
Hi, Soldier23!
6/2(1+2)
6/2(3)
6/2=3
3*3=9
I hope this helps;)

7 0
4 years ago
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2 Points<br> Evaluate 5 – (4 + 2)2
Ghella [55]

Answer:

-31

Step-by-step explanation:

5 - (4 + 2)^2 = -31

6 0
4 years ago
Arrange the equations in increasing order of the value of their solutions.
DiKsa [7]

Answer:

The answer is below

Step-by-step explanation:

a)

1/4x + 5/2x - 2 = 4 - 1/4x

collecting like terms:

(1/4)x + (5/2)x + (1/4)x = 4 + 2

3x = 6

x = 6/3

x = 2

b)

7.9x + x + 4 = -1.1x - 16

collecting like terms:

7.9x + x + 1.1x  = - 16 - 4

10x = -20

x = -2

c)

3.2x + 5.7 = -2.5x

collecting like terms:

3.2x + 2.5x = 5.7

5.7x = 5.7

x = 1

d)

10.1x - 1.6x + 44 = -7

collecting like terms:

10.1x - 1.6x = -7 - 44

8.5x = -51

x = -6

Hence the equations in increasing order of the value of their solutions is:

10.1x - 1.6x + 44 = -7

7.9x + x + 4 = -1.1x - 16

3.2x + 5.7 = -2.5x

1/4x + 5/2x - 2 = 4 - 1/4x

4 0
3 years ago
Read 2 more answers
Solving Systems Using Inverses
Zanzabum

Answer:

12x the second -12x -16

Step-by-step explanation:

Solving systems of equations with 3 variables is very similar

7 0
3 years ago
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