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12-08-2015
Mathematics

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Use addition or substitution to find the value of y for this set of equations. 2x - 3y = -15
x = 4y what is the value of y

Respuesta :

12-08-2015

Substitute 4y for x.

2(4y)-3y=-15

8y-3y=-15

5y=-15

Dividing by 5, we see that y=-3.

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