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timurjin [86]
3 years ago
9

Adding and subtracing linear wxpressions 12(−4x+8)−14(8x−12)

Mathematics
1 answer:
Delicious77 [7]3 years ago
3 0

Answer:

-160x+264

Step-by-step explanation:

-48+96x-112x+168

-160+264

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Please help me with this.
N76 [4]
If you use a textbook for this i would recommend slader, it really works!!
7 0
3 years ago
Can someone help me please?
Finger [1]

Answer: x = 4

y = - 3

Step-by-step explanation:

The given system of simultaneous equations is expressed as

x-3y = 13 ------------------------1

2x+4y=-4--------------------------2

We would apply the method of substitution in solving the equations. From equation 1, we would make x to stand alone by adding 3y to the left hand side and the right hand side of the equation. It becomes

x - 3y + 3y = 13 + 3y

x = 13 + 3y

Substituting x = 13 + 3y into equation 2, it becomes

2(13 + 3y) + 4y = - 4

26 + 6y + 4y = - 4

26 + 10y = - 4

Subtracting 26 from the left hand side and the right hand side of the equation, it becomes

26 - 26 + 10y = - 4 - 26

10y = - 30

Dividing the left hand side and the right hand side of the equation by 10, it becomes

10y/10 = - 30/10

y = - 3

Substituting y = - 3 into x = 13 + 3y, it becomes

x = 13 + 3 × - 3

x = 13 - 9

x = 4

5 0
3 years ago
Rectangular garden measures 31 feet by 41 feet. surrounding the garden is a path 4 feet wide find the area of this path
iris [78.8K]

Answer:

385ft^2

Step-by-step explanation:

31 * 41 = 1271

36 * 46 = 1656

1656 - 1271 = 385

Answer is 385 square feet

6 0
2 years ago
Is the rational number 4/-9 negative or positive?​
Annette [7]

the answer is negativepositive

4 0
2 years ago
Complete the square to find<br> the vertex of this parabola.<br> x2 - 8x - y - 4 = 0<br> ([?], [ ]
konstantin123 [22]

Answer:

-20

Step-by-step explanation:

Complete the square to find the vertex of this parablola x^2-8x-y-4=0   {the second one of -20; so 4,-20}

7 0
2 years ago
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