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Taya2010 [7]
3 years ago
6

2.1.4. The surm of two numbers is 4 and teir difference is 6. Determine the numbers​

Mathematics
2 answers:
Georgia [21]3 years ago
8 0

Answer:

5 and -1.

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
  • Subtraction Property of Equality<u> </u>

<u>Algebra I</u>

  • Terms/Coefficients
  • Solving systems of equations by substitution/elimination

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

Let <em>x</em> be one number and <em>y</em> be the other.

x + y = 4

x - y = 6

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

<em>Elimination</em>

  1. Combine 2 equations:                                                                                      2x = 10
  2. [Division Property of Equality] Divide 2 on both sides:                                  x = 5

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Substitute in <em>x </em>[1st Equation]:                                                                           5 + y = 4
  2. [Subtraction Property of Equality] Subtract 5 on both sides:                        y = -1
Mama L [17]3 years ago
7 0

Answer:

5 and -1

Step-by-step explanation:

Let the two numbers be x and y

x+y =4

x-y = 6

Add the two equations together

x+y =4

x-y = 6

--------------

2x = 10

Divide by 2

2x/2 =10/2

x=5

x+y = 4

5+y = 4

y = 4-5

y = -1

The numbers are 5 and -1

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