Respuesta :

Answer:

y ⁻²⁴⁄₅ or - 4.8

Explanation:

4x - 5y = 12

x = -3

  • Insert -3 for 'x' in the equation

4(-3) - 5y = 12

  • Remove the parentheses: (-a) = -a

-4 · 3 - 5y = 12

  • Multiply 4 · 3: 12

-12 - 5y = 12

  • Add 12 to both sides of the equation

-12 - 5y + 12 = 12 + 2

  • Simplify

-5y = 24

  • Divide both sides by -5

-5y / -5 = 24 / -5

  • Simplify

y = ⁻²⁴⁄₅

  • Turn the fraction into a decimal

y = -4.8