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
zoeli
zoeli
08-06-2016
-3(4)+9y=-57
-12+9y=-57
9y=-45
y=-5
Answer Link
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