1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alex41 [277]
3 years ago
13

12z-7z-2=13 solve for z

Mathematics
1 answer:
devlian [24]3 years ago
8 0

Answer: z = 3

Step-by-step explanation: To solve this equation for <em>z</em>, we can first combine our like terms on the left side of the equation. Since 12 and 7 both have <em>z</em> after their coefficient, we can subtract 12z - 7z to get 5z.

Now we have 5z - 2 = 13.

To solve from here, we add 2 to the left side of the equation in order to isolate 5z. If we add 2 to the left side, we must also add 2 to the right side. On the left side, the -2 and +2 cancel out. On the right, 13 + 2 simplifies to 15.

Now we have 5z = 15.

Solving from here, we divide both sides of the equation by 5 to get <em>z</em> alone. On the left side, the 5's cancel out and we are simply left with <em>z</em>. On the right side, 15 divided by 5 simplifies to 3 so we have z = 3.

You might be interested in
Maria is buying new carpet. Her bedroom is in the shape of a square and the length id each side is 12 feet. Write and simplify a
satela [25.4K]

Answer: She needed 144 square feet of carpet.

Step-by-step explanation:

Given : Maria is buying new carpet. Her bedroom is in the shape of a square.

The length of each side is 12 feet.

We know that the area of square = (side)^2

So , the area of the bedroom = (12)^2  [which is an exponential expression]

Simplify it

The area of the bedroom = 12\times12=144\ \text{ft}^2

Also, the carpet she needed = Area of the bedroom.

Thus , She needed 144 square feet of carpet.

4 0
3 years ago
Find x+y, if: 2x+3y=8 and 3x+5y=13
joja [24]
Answer is x = 1 & y = 2
the answer can be found using math-way
4 0
3 years ago
HELP ME I WILL GIVE YOU BRAINLIEST AND A 5.0 REVIEW
Jlenok [28]

Answer:

Base

Step-by-step explanation:

A power is the product of multiplying a number by itself. Usually, a power is represented with a base number and an exponent. The base number tells what number is being multiplied. The exponent, a small number written above and to the right of the base number, tells how many times the base number is being multiplied.

4 0
3 years ago
It is a six-digit
KonstantinChe [14]
Ok, the first clue is it has six digit and the second clue is it’s a whole number!
So we know it lies between 99999 and 1000000
3rd clue tells it has only 3 different digits and 4th clue tells us each are used twice!
Moving on, 5th clue says none of its digits are even! 6th speaks none are divisible be 3
So the possibilities for digits are 1, 5, 7
And it’s greater than 600000, then the 1st digit must be 7! It is divisible be 5, so last digit must be 5!
7th clue states that It’s tenth digit is same as hundred-thousand! Means the tenth digit is 7
Let’s see what we got!
{7xxx75}
Clue no 8 as you can see says that it’s thousands digit is same as unit digit
So the number now is {7x5x75}
9th clue says it’s hundreds digit is different from tens digit meaning the hundreds digit is either 1 or 7 and we used 7 two times, so it’s 1 and clue 10 says it’s ten thousands digit is 1 so the number that’s playing hide ‘n seek or most probably riddle game is 715175!
8 0
3 years ago
PLS HELP Complete the table so that the numbers in each column represent the coordinates of a point on the graph
Natasha2012 [34]

Answer:

1 is 1/2 5 is 2 1/2 and 7 would be 3 1/2

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • One half hour past midnight
    11·2 answers
  • Determine the seating capacity of an auditorium with 35 rows of seats if there are 20 seats in the first row, 23 seats in the se
    12·1 answer
  • Use the rules of significant figures to simplify the following expression: 22.674 • 15.05
    11·1 answer
  • What is the total price of a $40 item including 6.5% sales tax
    14·1 answer
  • Find the greatest common factor of 270 and 360. (Give the answer in the numerical form in the top box and in
    7·1 answer
  • Pythagorean theorem..
    8·2 answers
  • (2x + 9)<br> (2x - 5)°<br> 86°<br> (x + 3)<br> 1629<br> (x + 39)<br> What is the value of x?
    12·1 answer
  • NEED HELP ASAP What is the equation of the function in standard form? WILL GIVE BRAINLYEST TO CORRECT ANSWER
    13·1 answer
  • 7y+3=3x+11 <br> find x and y
    12·1 answer
  • Find the missing value.<br> Hint: use the number line to find the missing value<br> −5 = −8 − ___
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!