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3 years ago

Which is a correct first step for solving this equation? 4x=7+3(2x−5)

Mathematics

2 answers:

Gemiola [76]3 years ago

7 0

Answer:

Step-by-step explanation:

The easiest first step is to remove the brackets. Other things could be done, but they are done just because you can.

4x = 7 + 3*2x - 5*3 Just to show you more, I'll keep going.

4x = 7 + 6x - 15 Combine the minus 15 and 7

4x = 6x + 7 - 15

4x = 6x - 8 Now add 8 to both sides. It's a toss up of what to do

4x + 8 = 6x - 8 + 8

4x + 8 = 6x Subtract 5x from both sides

4x - 4x + 8 = 6x - 4x

8 = 2x Divide by 2

x = 4

The steps usually follow this order.

Dvinal [7]3 years ago

6 0

Answer:

x=4

Step-by-step explanation:

you have to do the ( ) first then you combine like terms and then you add them up and boom you got the answer

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Find the output, y, when the input, x, is 3.<br><br> Y=-5x+13

Alexeev081 [22]

Answer:

y = -2

Step-by-step explanation:

y = -5x + 13

x = 3

y = -5(3) + 13

y = -15 + 13

y = -2

4 0

2 years ago

Read 2 more answers

HURRY PLEASE The top and bottom of a right rectangular prism are 4 inches long and 4 inches wide. What is true about the other f

Masteriza [31]

Answer:

All four of the remaining faces will be 4 inches wide.

Step-by-step explanation:

A right rectangular prism with square base and top with sides of 4 in.

It has four sides of 4 in wide each and of equal height of unknown measure.

<u>Options:</u>

All four of the remaining faces will have a height of 4 inches.

Incorrect, the height is unknown.

There is not enough information to tell what the other faces will look like.

Incorrect, all the other faces are rectangular.

Two of the remaining faces will be 4 inches wide.

Incorrect, all the faces are 4 in wide.

All four of the remaining faces will be 4 inches wide.

Correct.

6 0

3 years ago

alicia and her friends Brittany, Kenji and Ellis are taking a pottery class. The four friends have to share 3 blocks of clay. Ho

ki77a [65]

You need to divide the 3 blocks of clay by the 4 friends. 3 goes in the dividend and the 4 is outside. 3 divided by 4 is equal to 0.75 or 3/4, so each friend gets 0.75 or 3/4 clay

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3 years ago

An abstract sculpture in the form of a triangle has a base 21 meters and a height of 12 meters. Find the are of the triangle.

charle [14.2K]

The area of a triangle could be determined using the following formula
$\boxed{a= \frac{1}{2} \times b \times h}$

plug in the numbers
$a = \frac{1}{2} \times 21 \times 12$
$a = \frac{1}{2} \times 252$
$a= \frac{252}{2}$
a = 126

The area of the triangle is 126 square meters

8 0

3 years ago

8640 divided by40 long division

Tju [1.3M]

The answer is 216.
https://photomath.net/s/YLLqQX

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3 years ago