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14-04-2020
Mathematics

contestada

Solve using substitution.
x-y=4
3x-2y=-5

Respuesta :

rafailpopa rafailpopa

14-04-2020

Answer:

x-y=4 => x=4+y

replace that in 2nd equation

3(4+y) -2y = - 5

12+3y-2y= -5

y = -17

x = 4+(-17) = -13

Step-by-step explanation:

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