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Use the substitution method to solve the system of equations.
y=-8x HELP
4x - y = 3
A. (6. - 4
ОВ. (3. - 4
C.
D. (1-2)

Use The Substitution Method To Solve The System Of Equations Y8x HELP 4x Y 3 A 6 4 ОВ 3 4 C D 12 class=

Sagot :

Space

Answer:

D. (1/4, -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

Equality Properties

Algebra I

  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

y = -8x

4x - y = 3

Step 2: Solve for x

Substitution

  1. Substitute in y:                    4x - (-8x) = 3
  2. Simplify:                               4x + 8x = 3
  3. Combine like terms:           12x = 3
  4. Isolate x:                              x = 3/12
  5. Simplify:                               x = 1/4

Step 3: Solve for y

  1. Define equation:                    y = -8x
  2. Substitute in x:                       y = -8(1/4)
  3. Multiply:                                  y = -2
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