Free Digital SAT System of Equations Practice Questions with Video Explanations

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$y=x+6$ ,

$2x+y=18$

The solution to the given system of equations is $(x,y)$ . What is the value of $x$ ?

A) 3

B) 4

C) 5

D) 6

Question 1 of 3

2. At a school play, adult tickets cost $16 each and student tickets cost $10 each. A total of 160 adult and student tickets were sold, and the total revenue from ticket sales was $1,990.

How many student tickets were sold?

A) 65

B) 75

C) 85

D) 95

Question 2 of 3

3. $y=x^2-8x+a$ ,
$y=4x-20$

In the given system of equations, $a$ is a constant. If the system has exactly one solution, what is the value of $a$ ?

A) 12

B) 14

C) 16

D) 20

Question 3 of 3

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