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Furkat [3]
4 years ago
5

What is the solution to the equation 5(x-3) = 2(x+3)?

Mathematics
1 answer:
VikaD [51]4 years ago
8 0
Answer:
x = 7


General Formulas and Concepts:
Order of Operations: BPEMDAS


Step-by-Step Explanation:
Step 1: Define
5(x - 3) = 2(x + 3)

Step 2: Solve for x
1. Distribute: 5x - 15 = 2x + 6
2. Subtract 2x on both sides: 3x - 15 = 6
3. Add 15 on both sides: 3x = 21
4. Divide both sides by 3: x = 7
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Help please for 40 points!! This is due tonight and i don’t know how to do it
Fofino [41]

Answer:

x = -8

m∠BDC = 68°

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

<u>Geometry </u>

  • Definition of a Line: A line is 180°

Step-by-step explanation:

<u>Step 1: Set up Equation</u>

m∠BDC + m∠CDA = 180°

(-7x + 12)° + (-8x + 48)° = 180°

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

  1. Combine like terms:                    -15x + 60 = 180
  2. Isolate x term:                              -15x = 120
  3. Isolate x:                                       x = -8

<u>Step 3: Find m∠BDC </u>

  1. Define:                    m∠BDC = (-7x + 12)°
  2. Substitute in x:       m∠BDC = (-7(-8) + 12)°
  3. Multiply:                  m∠BDC = (56 + 12)°
  4. Add:                        m∠BDC = 68°
5 0
3 years ago
George ran 1000 yards in gym class. how many kilometers did he run?
Sliva [168]

He ran 7 kilometers.

5 0
4 years ago
Help me by please this is kinda hard for my child and I forgot it
lisabon 2012 [21]
It's 6!

When you multiply both the numerator and denominator by the same number, you will have an equivalent to the fraction you started with because the new fraction can be reduced to the original fraction.

2/3 = 4/6 = 6/9 = 8/12 = 10/15 = 12/15 etc.
4 0
3 years ago
Evaluate the function for x = –4c if c = –2.
irga5000 [103]
<span>x = –4c
</span>if c = -2 then x = -4(-2) = 8

I believed you  had a typo, function should be f(x) = -3x^2 - 4x 
so
<span>f(x) = -3x^2 - 4x 
</span>f(x) = -3(8^2) - 4(8)
f(x) = -3(64) - 32
f(x) = -192 - 32
f(x) = -224

answer

<span>C.
–224</span>
5 0
4 years ago
What is the mean rainfall for the three towns in January to the nearest centimeter?
Nastasia [14]

Answer:

I think its 3.0

Step-by-step explanation:

5 0
3 years ago
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