Johnny has $12 less than sarah. sarah has $35 less than carla. in total, they have $143. how much money does each of them have?

Step-by-step explanation:

Amount with Carla = $ x

Amount with Sarah = x - 35

Amount with Johnny = x - 35 - 12

x + x -35 + x - 35 -12 = 143

3x - 82 = 143

3x = 143 + 82

3x = 225

x = 225/3

x = 75

Amount with Carla = $ 75

Amount with Sarah = 75 - 35 = $ 40

Amount with Johnny = 40 - 12 = $ 28

use substitution to solve each system of equations. y = x + 5 3x + y = 25 62/87,21 y = x + 5 3x + y = 25 substitute x + 5 for y in the second equation. substitute the solution for x into either equation to find y. the solution is (5, 10)

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