What is the first step to take when solving this linear system of equations by the addition-subtraction method? 2x + 4y = 3 x + 3y =13 A) solve for y in terms of x B) solve for x in terms of y C) multiply the first equation by ?2 D) multiply the second equation by ?2
2 answers:
Answer:c
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
multiply the second equation by −2
In the addition-subtraction method, the two equations in the system are added or subtracted to create a new equation in one variable. In order for the new equation to have only one variable, the other variable must cancel out.
multiply the second equation by −2:
2x + 4y = 4
−2x − 6y = −26
→ −2y = −22
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