Respuesta :

jasmhineespinas32

Answer:

14x-21y

Step-by-step explanation:

jaimitoM

To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. This is:

  7(2x – 3y)

= 7(2(6) – 3(-2))

= 7(12 + 6)

= 7(18)

= 126

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