All categories

3 years ago

Given the equation 5+x-12=x-7:

Mathematics

1 answer:

yanalaym [24]3 years ago

6 0

Step-by-step explanation:

PART A:

given $5+x-12=x-7$

$5+x-12=x-7\\x-7=x-7\\x=x\\$

This is true for all values of x.

So,x∈ $($ -∞,+∞ $)$

PART B:

When $x=4$ ,left hand side= $5+4-12=-3$

right hand side= $4-7=-3$

so,left hand side =right hand side

When $x=0$ ,left hand side= $5+0-12=-7$

right hand side= $0-7=-7$

so,left hand side =right hand side

When $x=5$ ,left hand side= $5+5-12=-2$

right hand side= $5-7=-2$

so,left hand side =right hand side

You might be interested in

At the grocery store, Lily spent m dollars on milk, twice that amount on fruit, and 6 dollars less than 3 times the amount spent

AlladinOne [14]

Answer:

<u>The amount of money Lily had when she left the store, in terms of m, is 86 - 6m</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

m = Milk Lily purchased

2m = Fruit Lily purchased (twice that amount on fruit)

3m - 6 = Bread Lily purchased (6 dollars less than 3 times the amount spent on milk for bread)

Amount of money Lily entered = $ 80

2. How much money did Lily have when she left? Write your answer in terms of m.

Let's write the equation to find out the money left in terms of m, this way:

Money left = 80 - m - 2m - (3m - 6)

Money left = 80 - m - 2m - 3m + 6

Money left = 86 - 6m

<u>The amount of money Lily had when she left the store, in terms of m, is 86 - 6m</u>

3 0

3 years ago

Read 2 more answers

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!WILLGIVEBRAINLYIEST

satela [25.4K]

The coordinates move from point a to point b by moving 4 to the left which means the width is four and also the coordinates from b to c is also 4 which would make the height 4 so the answer would be 16

3 0

3 years ago

Read 2 more answers

If a 10-pound sack of potatoes costs $6.55, how much would 1 pound cost? Round your answer to the nearest cent.

lozanna [386]

Hello there!

6.55 ÷ 10 = .655

1 pound would cost about $0.65

8 0

3 years ago

The equation of the line passing through the points (−10, 0) and (−8, 20) can be expressed as y = mx + b. Give the value of b.

grigory [225]

(-10, 0) and (-8,20)

y=mx+b

here m is slope and b is y intercept

firstly we have to find the value of m , that is slope

formula is

$m=\frac{(y_{2} - y_{1})}{(x_{2}- x_{1})}$

So $m=\frac{20-0}{-8-(-10)}= \frac{20}{2}=10$

Plug in the function\

$y=10 x+b$

Now plug any one point in the function to find the value of b

$0= 10 (-10) +b$

$0=-100+b$

Add 100 to both sides

b=100

6 0

4 years ago

Read 2 more answers

Solve for X: 2^3x + 1 = 2^10<br><br> please look at photo and give detailed steps!! thank you

mel-nik [20]

Step-by-step explanation:

since the bases are the same all you have to do is just get the powers of both bases which is 3x + 1 and 10

you're then going to equate 3 x + 1 to 10 and then you have to make +1 cross to the other side making it become -1

you then can subtract 1 from 10 leaving you with 9

and at the LHS we have 3x

we are gonna get rid of the three by dividing it into itself and the 9 at the RHS then <u>X = 3</u>

7 0

3 years ago