Answer:
-6
Step-by-step explanation:
6+5+x=41
11+x=41
11+-11+x=41+-11
x=30
Sue is 30 years old
X + y = 1
x + 3y = 9
Subtract the second equation from the first.
-2y = -8
divide both sides by -2
y = 4
Plug 4 back into either equation and solve for x.
x + y = 1
x + 4 = 1
subtract 4 from each side
x = -3
(-3, 4)
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