Dyancey818
Dyancey818 Dyancey818
  • 11-07-2017
  • Mathematics
contestada

if x equals 3, then find the matching value for y.
-7x-4y=-5

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musiclover10045
musiclover10045 musiclover10045
  • 11-07-2017

-7(3)-4y=-5

-21-4y=-5

-4y = 16

y=-4


Answer Link
matthewcooke23 matthewcooke23
  • 11-07-2017
if x = 3 
- 7x - 4y = -5 is the same as -7*3 - 4y = -5
hence -21 - 4y = -5
           4y = -16
             y = -4
Answer Link

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