applebottomjeans56 applebottomjeans56
  • 23-03-2022
  • Mathematics
contestada

Evaluate 2x + 4y if x = -1 and y = 3
Evaluate ab + c if a = 2 b = -4 and c=5

Evaluate 2x 4y if x 1 and y 3 Evaluate ab c if a 2 b 4 and c5 class=

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zhenlowwerty zhenlowwerty
  • 23-03-2022

✏️SUBSTITUTION

Solution:

Number #1

2x + 4y

Given: x = -1, y = 3

  • 2x + 4y
  • 2(-1) + 4(3)
  • -2 + 12
  • 10

Number #2

ab + c

Given: a = 2, b = -4, c = 5

  • ab + c
  • (2)(-4) + 5
  • -8 + 5
  • -3

Answer:

Evaluate 2x + 4y if x = -1 and y = 3

  • 10

Evaluate ab + c if a = 2 b = -4 and c=5

  • -3

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