watermelonlancher watermelonlancher

13-08-2021
Mathematics

contestada

If some one could figure out the x and y are
The problem is
3x+4y=50
-2x=y

Respuesta :

Bromine67 Bromine67

13-08-2021

Answer:

x = -10

y = 20

Step-by-step explanation:

y = -2x

so

substituting the value in equation ii

3x + 4y = 50

or, 3x + 4(-2x) = 50

or, 3x + (-8x) = 50

or, 3x-8x = 50

or, -5x = 50

so, x = -10

so

y = -2x

or, y = -2*(-10)

so, y = 20

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