savannah6833 savannah6833

30-01-2021
Mathematics

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PLEASE HELP FAST!! ILL MARK AS BRAINLIEST!! Graphing is the best choice when solving for the following system:
y=-3x+4
-4x+2y=18
True
False

Respuesta :

30-01-2021

False. You can find the solution more quickly by solving the system algebraically.

-4x + 2y = 18

Since y=-3x+4,
-4x + 2(-3x+4) = 18
-4x - 6x + 8 = 18
-10x = 10
x = -1
y = -3x+4 = 7

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