Question

2. which value is a solution for the equation 3 - 2x = -5
A. 2
B. 4
C. -2
D. 1/5

3. Which ordered pair is a solution of the equation? y = x - 2
A. (3, 1)
B. (1, 3)
C. (-1, 3)
D. (3, -1)

4. Which ordered pair is a solution of the equation? y = 4x
A. (1, 3)
B. (-1, -4)
C. (-4, -1)
D. (1, -4)

Answer 1

2. equation is ---> 3 - 2x = -5
3 - 2x = -5
-2x = -5 - 3
-2x = -(5 + 3)
-2x = -8
x = 4
hence , option (B) is correct.

3. equation is ----> y = x - 2
if we take x = 3 , y = 3 - 2 = 1
hence, solution of given equation is (3,1)
so, option (A) is correct.

4. equation is ----> y = 4x
if we take 1 then, y = 4 × 1 = 4
hence, solution of given equation is (1,4)
and if we take x = -1 then, y = 4 × (-1) = -4
hence, (-1,-4) is also a solution of y = 4x
hence, option (B) is correct.