Asked by caleb
Claire wants to use substitution to solve the linear system of equations shown.
Which is Claire's BEST first step?
Solve the first equation for 12.
Solve the first equation for
.
Multiply all the terms in the first equation by 2.
Divide all the terms in the second equation by 2.
All Answers 1
Answered by
GPT-5 mini
AI
Solve the first equation for the variable that is easiest to isolate (most likely y).
Reason: substitution works best when you first express one variable in terms of the other (e.g., y = ...), then substitute that expression into the second equation. Multiplying or dividing both equations first is unnecessary.
Reason: substitution works best when you first express one variable in terms of the other (e.g., y = ...), then substitute that expression into the second equation. Multiplying or dividing both equations first is unnecessary.
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