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Y = x - 4
y = 4x + 2
x=
y =

Y = x - 4 y = 4x + 2 x= y =-example-1

2 Answers

7 votes

Answer by Khan Academy:

x=−2

y=−6

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Explanation:

Y = x - 4 y = 4x + 2 x= y =-example-1
Y = x - 4 y = 4x + 2 x= y =-example-2
Y = x - 4 y = 4x + 2 x= y =-example-3
User Kgd
by
5.2k points
7 votes

Answer:

(-3/2, -11/2)

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

Algebra I

  • Equality Properties
  • Solving systems of equations using substitution/elimination

Explanation:

Step 1: Define Systems

y = x - 4

y = 4x + 2

Step 2: Solve for x

Substitution

  1. Substitute in y: x - 4 = 4x + 2
  2. Isolate x terms: -4 = 4x + 2
  3. Isolate x term: -6 = 4x
  4. Isolate x: -3/2 = x
  5. Rewrite: x = -3/2

Step 3: Solve for y

  1. Define equation: y = x - 4
  2. Substitute in x: y = -3/2 - 4
  3. Subtract: y = -11/2
User Octavius
by
5.3k points