falcon93 falcon93

08-06-2016
Mathematics

contestada

find the value of y when x equals 4, -3x+9y=-57

Respuesta :

JacobLeviste JacobLeviste

08-06-2016

-12 + 9y = -57

add 12 to both sides, 9y = -45

divide 9 from both sides to isolate the y

y = -5

Answer Link

08-06-2016

-3(4)+9y=-57
-12+9y=-57
9y=-45
y=-5

Answer Link

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