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Andreas93 [3]
3 years ago
12

X: -3x + 14 = 4x -7

Mathematics
2 answers:
vaieri [72.5K]3 years ago
8 0

Answer:

x = 3

Step-by-step explanation:

You are solving for x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. PEMDAS is the order of operation, and equals:

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

First, subtract 14 and 4x from both sides:

-3x (-4x) + 14 (-14) = 4x (-4x) - 7 (-14)

-3x - 4x = -7 - 14

-7x = -21

Next, divide -7 from both sides of the equation:

(-7x)/-7 = (-21)/-7

x = -21/-7

x = 3

x = 3 is your answer.

~

Luda [366]3 years ago
7 0
-3x+14=4x-7 = x=3

The answer is x=3
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Answer all questions and get branlist and 30 points
alukav5142 [94]

Answer:

1. w-6

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Step-by-step explanation:

hope this helped

8 0
3 years ago
Please help me thank you.
Alexxandr [17]

Answer:

B

Step-by-step explanation:

3      -4    |   2

0      -1     |   7

3/2    -2    |   1

R1/3 ----> R1  (divide Row 1 by 3)

1       -4/3    |  2/3

0        -1      |   7

3/2      -2     |   1

R3 - 3/2  R1 -------> R3 (multiply Row 1 by 3/2 and subtract it from Row 3)

1      -4/3    |   2/3

0       -1      |    7

0       0      |    0

R2 / -1 -------> R2 (Divide Row 2 by -1)

1      -4/3   |  2/3

0        1     |   -7

0        0    |   0

R1 + 4/3 R2 --------> R1 (Multiply Row 2 by 4/3 and add it to Row 1)

1     0     |   -26/3

0    1      |      -7

0    0     |      0

5 0
3 years ago
For a given triangle it is known that cos A =-0.5, where 0° <br> Based on the information given above, the value of angle(s) A i
Assoli18 [71]

Answer:

120

Step-by-step explanation:

Here, we want to get the possible value of A

Now, we should understand that the value of an angle in triangle cannot be more than 180

Also, cosine can only be negative in the second and the 3rd quadrant

So,

arc cos (-0.5) = 120 , 300 , 60

But 60 is not correct as it will give a negative value

300 is not correct also as it is more than the angles present in a triangle

Thus, our answer is 120

7 0
3 years ago
Please help me thanks​
Brrunno [24]

Answer:

D

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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