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julsineya [31]
2 years ago
12

What is the answer ???

Mathematics
2 answers:
pychu [463]2 years ago
3 0
Answer: second equation
asambeis [7]2 years ago
3 0

Answer:

B

Step-by-step explanation:

a)

2x + x + 5x -9 = -6 + 9x - x + 3

8x - 9 = 8x -3

8x - 8x = -3+9

0

Has no solution.

b)

10x -6x -4-1 = 7-12+2x+2x

    4x - 5 = 4x - 5

      0 = 0

therefore has infinite solutions.

c)

7x + 5 + 4 - 9x = x + 2 - 4 +8x

-2x + 9 = 9x -2

-11x = -11

x = 1

Soluble and has a solution.

d)

5x - 2x - 3 -9 = x -12 + 3x + 3x

3x -12 = 7x -12

-4x = 0

x = 0

Has a solution.

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The temperature at midnight was 3°. By 6am, the temperature had dropped 5°. What was the temperature at 6am?
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8 0
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What is the quotient of 11/12 ÷ 5/7 ?
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1 of 6 The length of each side of a square is 6.1 cm rounded to 1 decimal place. Write the error interval for the perimeter, p ,
arsen [322]

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<h3>How to determine the error of interval?</h3>

The perimeter is given as:

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8 0
1 year ago
What is the algebraic expression that describes the monthly salary?
fomenos

Answer:

D

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You take the number on the left (10, 20, 30, 40, 50, 60, 70) and times it by 20, replacing the x in the equation with the number on the left side of the table. Then you add the number from said equation to result of the multiplication from the first step.

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