A. 4
B. 5
C. 6
D. -4
E. None of these
Explanation:
9 x + x = 13 + 27
10 x = 40 => x = 4
Related Mcqs:
- A student can solve q questions in 1/h hour. At this rate how many questions can she solve in q hours?
A. hq
B. hq2
C. 1/hq
D. h/qSubmitted by: Rifaqat Ali
- Solve the equation for x : 19(x + y) + 17 = 19(-x + y) – 21
A. -1
B. -2
C. -3
D. -4
E. None of these - If the roots of a quadratic equation are 20 and -7, then find the equation?
A. x2 + 13x – 140 = 0
B. x2 – 13x + 140 = 0
C. x2 – 13x – 140 = 0
D. x2 + 13x + 140 = 0 - (i). a2 – 7a + 12 = 0,
(ii). b2 – 3b + 2 = 0 to solve both the equations to find the values of a and b?A. if a < b
B. if a ≤ b
C. if the relationship between a and b cannot be established.
D. if a > b - (i). a2 – 9a + 20 = 0,
(ii). 2b2 – 5b – 12 = 0 to solve both the equations to find the values of a and b?A. If a < b
B. If a ≤ b
C. If the relationship between a and b cannot be established
D. If a ≥ b - (i). a2 + 11a + 30 = 0,
(ii). b2 + 6b + 5 = 0 to solve both the equations to find the values of a and b?A. If a < b
B. If a ≤ b
C. If the relationship between a and b cannot be established
D. If a > b - I. x2 + 3x – 18 = 0,
II. y2 + y – 30 = 0 to solve both the equations to find the values of x and y?A. If x < y
B. If x > y
C. If x ≤ y
D. If x ≥ y
E. If x = y or the relationship between x and y cannot be established. - I. x2 + 11x + 30 = 0,
II. y2 + 15y + 56 = 0 to solve both the equations to find the values of x and y?A. If x < y
B. If x > y
C. If x ≤ y
D. If x ≥ y - I. 9a2 + 18a + 5 = 0,
II. 2b2 + 13b + 20 = 0 to solve both the equations to find the values of a and b?A. If a > b
B. If a ≥ b
C. If a < b
D. If a ≤ b - Solve for x
2x:25 = 6:(x/3)A. 18
B. 15
C. 12
D. 5