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
PtichkaEL [24]
3 years ago
10

7x - 3 = 39 sloving linear equations

Mathematics
2 answers:
xxMikexx [17]3 years ago
6 0
7x - 3 = 39
first add three to both sides
7x = 42
next divide both sides by 7
x = 6
Lostsunrise [7]3 years ago
5 0

Answer:

x = 6

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality<u> </u>

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

7x - 3 = 39

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. [Addition Property of Equality] Add 3 on both sides:                                   7x = 42
  2. [Division Property of Equality] Divide 7 on both sides:                                x = 6

<u>Step 3: Check</u>

<em>Plug in x into the original equation to verify it's a solution.</em>

  1. Substitute in <em>x</em>:                                                                                                7(6) - 3 = 39
  2. Multiply:                                                                                                           42 - 3 = 39
  3. Subtract:                                                                                                          39 = 39

Here we see that 39 does indeed equal 39.

∴ x = 6 is the solution to the equation.

You might be interested in
Simplify the expression.
Nimfa-mama [501]
The answer is C.15c+72
5 0
3 years ago
Caleb started saving money in a cookie jar. He started with $25 .He adds $10 to the cookie jar each week. Write an equation wher
Kryger [21]
It would be, t= 10w + 25 And to make a graph but in values for w; w: 1 / 2 / 3 / 4 t: 35/ 45 / 55 / 65 And then you plot the points on the graph.
8 0
4 years ago
Highlight and name a pair of overlapping congruent triangles in each diagram. State whether the triangles are congruent by SSS,
zavuch27 [327]

Answer:

1. ONA and OMP, AAS

2. MRQ and SRQ, SSS

3. ARF and ROA, HL

4. GOS and GRT, AAS

6 0
3 years ago
Read 2 more answers
What is the slope of the line that is parallel to the line shown?
ELEN [110]
Hey there! :D

All parallel lines have the same slope. They would need to, otherwise, they would intersect or come together at an angle eventually. 

So, let's find the slope. 

I'm going to use rise over run. (Remember, when moving to the left, you make the number negative. 

rise=1 run= -3

-1/3 <== the slope 

"C" is the correct answer. 

I hope this helps!
~kaikers 
4 0
3 years ago
1. Solve the inequality.
Sauron [17]

Answer:

Your final answer is either

x≥-2   if your initial inequality was

6x+2≤2(5-x)

OR

x≤-2

if your initial inequality was

6x+2≥2(x-2)

Step-by-step explanation:

As shown you have an equality, not an inequality.

-6x+2=2(5-x)          distribute through parenthesis

-6x+2=2(5)+2(-x)

-6x+2=10-2x           add 2x to both sides

2x-6x+2=10-2x+2x

-4x+2=10                subtract 2 from both sides

-4x+2-2=10-2

-4x=8                      divide both sides by -4

-4x/(-4) = 8/(-4)

x = -2

With the ≥ or ≤ sign you would solve the exact same way

except for the point where when dividing both sides by

-4 requires you to reverse the inequality.

Your final answer is either

x≥-2   if your initial inequality was

6x+2≤2(5-x)

OR

x≤-2

if your initial inequality was

6x+2≥2(x-2)

7 0
3 years ago
Other questions:
  • Why would immigrints have chosen to live in the middle colonies
    15·1 answer
  • Solve the proportion<br>17/3 = y/6
    7·1 answer
  • Before leaving to visit Mexico, levant traded 270 american dollars and received 3000 mexican pesos. When he returned from mexico
    7·2 answers
  • After the debate, how many votes will Rebecca and Craig receive?
    10·1 answer
  • 2. Simplify the following expression:<br> (10 – 7r - p2)+(-6r2 - 18 +5r)<br> Your answer
    7·2 answers
  • What is the area, in square units, of a triangle with vertices at (-1,-1), (3,-1), (2,2) PLEASE HELP
    15·1 answer
  • Come join please<br> Among Us code:DHFONF
    10·1 answer
  • A type of opinion based on observation and evidence.
    7·2 answers
  • Could I please get help with this, I’m very confused and don’t know how to do this. Please and thank you
    6·1 answer
  • Lara bought 3 yards of fabric and a spool of thread for $28.10. If the spool of thread cost $1.25, how much did the fabric cost
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!