All categories

3 years ago

Solve the following "two-step" linear equation. x/3-7=-2

Mathematics

2 answers:

RUDIKE [14]3 years ago

7 0

Answer: x=15

Step-by-step explanation:

**Disclaimer** I am not quite sure of the meaning of "two-step", which I assume is the literal meaning of using two steps to solve the linear equation. If I was incorrect, you may point it out and I will redo it.

Given

x/3 - 7 = -2

Add 7 on both sides (Below is one step, I just want to make it clearer for you to understand. When you write your steps, just directly write the second part)

x/3 - 7 + 7 = -2 + 7

x/3 = 5

Multiply 3 on both sides (Below is one step, similar to the step before)

x/3 · 3 = 5 · 3

x = 15

Hope this helps!! :)

Please let me know if you have any questions

OleMash [197]3 years ago

5 0

Firstly add 7 to both sides= x/3= 5
Times by 3 on both sides to get x on its own= x= 15

You might be interested in

If 6 books cost 10 dollars, how many books can you buy with 5 dollars?

anyanavicka [17]

Well you know that half of 10 is 5 so what is half of 6 = 3 so you can buy 3 books with 5 dollars

6 0

3 years ago

Read 2 more answers

A cube with sides numbered 1 to 6 is rolled 300 times. What is the best prediction for the number of times that a 1 or 2 would b

Leno4ka [110]

The answer is A.

Divide 300 by the number of faces of a cube.

Since there are 6 faces on a cube then we divide it.

300 ÷ 6 = 50.

So exactly 50 times.

Hope this helps :)

7 0

3 years ago

Avani is trying to find the height of a radio

kiruha [24]

Answer:

The height of the antenna is 7.0 m

Step-by-step explanation:

Let the height of the antenna be represented by x, and the distance from Avani's eyes to the top of the building A by y. And let z = x + y, so that:

Tan 42 = $\frac{y}{21}$

y = Tan 42 x 21

= 0.9004 x 21

= 18.9084

y = 18.91 m

Also,

Tan 51 = $\frac{z}{21}$

z = Tan 51 x 21

= 1.2349 x 21

= 25.9329

z = 25.93 m

Therefore,

x = z - y

= 25.93 - 18.91

= 7.02

x = 7.02 m

The height of the antenna is 7.0 m

8 0

3 years ago

Pls help with this

Pachacha [2.7K]

Answer:

under 7 is 35 and the next box is 9 on top and 45 on the bottom

Step-by-step explanation:

you have to multipy the books Jillian read by how many times 3 can go into 15, which is 5 times. You can also divide 15 by 3 to find out if its multiplied by 5.

7 0

3 years ago

4. Chrissie says the equation of the line shown

marissa [1.9K]

You will have to provide a picture of the graph to know which person is correct.

5 0

4 years ago