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Rom4ik [11]
3 years ago
9

What is -2(x+3)=4x-3

Mathematics
2 answers:
frozen [14]3 years ago
8 0

-2(x+3)=4x-3

mutiply both sides by -2

(-2)(x)= -2x

(-2)(3)= -6

-2x-6= 4x-3

move 4x to the other side

sign changes from +4x to -4x

-2x-4x-6= 4x-4x-3

-2x-4x-6= -3

-6x-6= -3

move -6 to the other side

sign changes from -6 to +6

-6x-6+6= -3+6

-6x= 3

divide both sides by -6 to get x by itself

-6x/-6= 3/-6

Cross out -6 and -6, divide by -6 and then becomes 1*1*x= x

x= -3/6

Reduce the fraction by dividing by 3 for the numerator and denominator

-3/3= -1

6/3= 2

Answer: x= -1/2

Natali5045456 [20]3 years ago
3 0

Answer:

x=-.5

Step-by-step explanation:

First distribute -2 to x and three to get -2x-6

then write your equation, -2x-6=4x-3

Next add 2x to both sides and do the same with 3

-3=6x

Then divide -3 by 6 which gives you -.5

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Obviously if it takes him around 12 hours to drive 1158 km. Then by ratio method we can calculate how much time it takes for him for one hour. So 1158/12 = 96.5 in one hour.

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3 years ago
The sum of the volume of two rectangular prisms, box a and box b are 14.325cm cubed. Box a has a volume of 5.61cm.
Galina-37 [17]

The equation that could be used to determine the volume of Box B is (B = 14.325cm³ - 5.61cm³) and the volume of Box B is 8.715cm³.

This question is incomplete, the complete question is:

The sum of the volume of two rectangular prisms, box a and box b are 14.325cm cubed. Box a has a volume of 5.61cm.

a. Let B represent the volume of Box B in cubic centimeters. Write an equation that could be used to determine the volume of Box B.

b. Solve the equation to determine the volume of Box B

<h3>What is volume?</h3>

Volume is simply the amount of space that is enclosed within a container.

Given that;

  • Sum of the volume of two rectangular prisms A&B = 14.325cm³
  • Volume of Box A = 5.61cm³

a)

Let B represent the volume of Box B in cubic centimeters. The equation that could be used to determine the volume of Box B will be;

Sum of the volume of two rectangular prisms A&B = Volume of Box A + Volume of Box B

14.325cm³ = 5.61cm³ + B

B = 14.325cm³ - 5.61cm³

Hence, The equation that could be used to determine the volume of Box B is B = 14.325cm³ - 5.61cm³

b)

To determine the volume of Box B, we solve the equation.

B = 14.325cm³ - 5.61cm³

B = 8.715cm³

Hence, the volume of Box B is 8.715cm³.

Learn more about volume rectangular prism here: brainly.com/question/9796090

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