What should you substitute for x in the second equation (bottom equation) in order to solve the system by the substitution method?
= 6
{}x+4y=
6
x-3y = 9
X-
x =
Answer here
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Can someone me with my hwplz(only the circled ones)

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.

What is the quotient? x+5/ 3x²+4x+5 © 3x2 – 11 + x + s 3x – 11 + 60 x + 5 o 3x2 - 11 - 50 x + 5 3x – 11 - - x + 5