Question 2-a-8-
1.4 Systems of Two Linear Equations - Elimination method
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The solution to the given system of equations is . What is the value of ?
Enter your answer:
2 a + 8 b = 198 2 a + 4 b = 98 The solution
Hard-difficulty · SAT Math · Systems of Two Linear Equations — Elimination method. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
The correct answer is . Subtracting the second equation from the first equation in the given system of equations yields , which is equivalent to, or . Dividing each side of this equation by yields .
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