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Find the value of y in the equation y=-4x+9 when x=-3

Sagot :

Space

Answer:

y = 21

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

Step-by-step explanation:

Step 1: Define

Identify

y = -4x + 9

x = -3

Step 2: Evaluate

  1. Substitute in x [Equation]:                                                                                y = -4(-3) + 9
  2. Multiply:                                                                                                             y = 12 + 9
  3. Add:                                                                                                                   y = 21
alexaaaisbvgb
y =21
-4x-3 =12
12+9=21
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