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I don't know could I get some help please.

I don't know could I get some help please.-example-1

2 Answers

7 votes
(-3,-11) that’s your answer hope it helps
User Emmanuel Figuerola
by
5.2k points
9 votes

Answer:

(-3, -11)

General Formulas and Concepts:

Pre-Algebra

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

Algebra I

  • Coordinates (x, y)
  • Terms/Coefficients
  • Solving systems of equations using substitution/elimination

Explanation:

Step 1: Define Systems

y = 7x + 10

y = -4x - 23

Step 2: Solve for x

Substitution

  1. Substitute in y: 7x + 10 = -4x - 23
  2. [Addition Property of Equality] Add 4x on both sides: 11x + 10 = -23
  3. [Subtraction Property of Equality] Subtract 10 on both sides: 11x = -33
  4. [Division Property of Equality] Divide 11 on both sides: x = -3

Step 3: Solve for y

  1. Define original equation: y = 7x + 10
  2. Substitute in x: y = 7(-3) + 10
  3. Multiply: y = -21 + 10
  4. Add: y = -11
User Alvis
by
5.2k points