# math

What is the first step in solving the linear system
{2x−3y=11
{−x+5y=−9
by the substitution method in the most efficient way?

A.
Solve the first equation for x.

B.
Solve the first equation for y.

C.
Solve the second equation for x.

D.
Solve the second equation for y.

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1. x is all alone in the second equation, x = 5 y + 9
solve it for x and substitute that in the first equation.

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Damon
2. Rockin' Roller Rinks Quiz
for

C. Solve the second equation for x.
C. The system has no solutions.
Written Response
A. ( − 2, − 5 )
D. { y = 250 + 0.12x y = 475 + 0.08x
A. 7 lb
A. (2, 0) & B. (−2, −10)
Written Response
Written Response
Written Response

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3. TYSM NEZUKO CORRECT

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4. The first step to solve simultaneous equations using substitution method is
Make X or y the subject of the equation but use the POSITIVE X OR Y!!
never use the negative ones I hate solving with negative numbers be warned!!!👍

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