3
QuizMultiple Choice

Solving Systems of Linear Equations: Substitution — Quiz

Question 3 • Algebra I

What is the solution to the system of equations? y is equal to 1 point 5 x minus 4 y is equal to negative x

Answer
A
negative 1 point 6 comma 1 point 6
B
negative 1 point 5 comma 1 point 5
C
1 point 5 comma negative 1 point 5
D
1 point 6 comma negative 1 point 6

Explanation

Since both expressions equal y, set them equal: 1.5x − 4 = −x. Adding x and 4 gives 2.5x = 4, so x = 1.6. Substitute into y = −x to get y = −1.6. The solution is (1.6, −1.6), choice D.

AI-written and checked against the verified answer.

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