Question

Use the Substitution Method to solve the following system of equations.
2x - 9y = 1
x - 4y = 1

Answer 1

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Answer 2

start with
\[x=1+4y\] the first equation becomes
\[2(1+4y) - 9y = 1 \]

Answer 3

x=1+4y
2(1+4y)-9y=1
2+8y-9y=1
y=1

Answer 4

thank you all