Answer:
B
Step-by-step explanation:
because when you divide all the answers their hours of training its all different answers
9x - 3y = -12
-9x +5y = -1
2y = -13
y = -13/2
-3x - 13/2 = 8/2
-3x = 21/2
-6x = 21
x = -21/6 = -7/2
(-7/2, -13/2)
X=13
Isolate the variable by dividing each side by factors that don't contain the variable.
D
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