CSS - PMS - CCE - PCS - Mathematics
Equations
Solve the simultaneous equations: x + y = 27 and 6x + 4y = 154. What is x?
A. 27
B. 24
C. 4
D. 23
Correct Answer: D
Using y=27−x in the second equation gives x=23.
CSS - PMS - CCE - PCS - Mathematics
Equations
If 4x + 3 − 5 = 70, what is x?
A. 16
B. 20
C. 72
D. 18
Correct Answer: D
4x = 70 − 3 + 5 = 72; therefore x=18.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: 4(x + 8) = 84.
A. 5
B. 13
C. 21
D. 15
Correct Answer: B
Divide by 4: x+8=21; hence x=13.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve for x: 2x + 15 = 31.
A. 7
B. 9
C. 16
D. 8
Correct Answer: D
2x = 31 − 15 = 16; x = 16 ÷ 2 = 8.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: x/2 + 1 = 4.
A. 3
B. 5
C. 6
D. 1
Correct Answer: A
x/2=3=3; multiplying by 2 gives x=3.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve the simultaneous equations: x + y = 36 and 5x + 2y = 138. What is x?
A. 22
B. 23
C. 14
D. 36
Correct Answer: A
Using y=36−x in the second equation gives x=22.
CSS - PMS - CCE - PCS - Mathematics
Equations
If 4x + 6 − 4 = 70, what is x?
A. 68
B. 15
C. 19
D. 17
Correct Answer: D
4x = 70 − 6 + 4 = 68; therefore x=17.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: 5(x + 5) = 85.
A. 7
B. 17
C. 12
D. 14
Correct Answer: C
Divide by 5: x+5=17; hence x=12.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve for x: 5x + 21 = 56.
A. 6
B. 7
C. 35
D. 8
Correct Answer: B
5x = 56 − 21 = 35; x = 35 ÷ 5 = 7.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: x/6 + 2 = 4.
A. 12
B. 8
C. -4
D. 2
Correct Answer: D
x/6=2=2; multiplying by 6 gives x=2.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve the simultaneous equations: x + y = 28 and 4x + 4y = 112. What is x?
A. 22
B. 7
C. 21
D. 28
Correct Answer: C
Using y=28−x in the second equation gives x=21.
CSS - PMS - CCE - PCS - Mathematics
Equations
If 4x + 9 − 3 = 70, what is x?
A. 14
B. 64
C. 18
D. 16
Correct Answer: D
4x = 70 − 9 + 3 = 64; therefore x=16.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: 6(x + 2) = 78.
A. 9
B. 13
C. 11
D. 12
Correct Answer: C
Divide by 6: x+2=13; hence x=11.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve for x: 8x + 3 = 51.
A. 6
B. 5
C. 7
D. 48
Correct Answer: A
8x = 51 − 3 = 48; x = 48 ÷ 8 = 6.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: x/5 + 3 = 33.
A. 25
B. 35
C. 150
D. 30
Correct Answer: D
x/5=30=30; multiplying by 5 gives x=30.
CSS - PMS - CCE - PCS - Mathematics
Equations
Which is the larger root of x² − 12x + 35 = 0?
A. 7
B. 12
C. 5
D. 35
Correct Answer: A
x²−12x+35=(x−7)(x−5); roots are 7 and 5.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve the simultaneous equations: x + y = 37 and 3x + 2y = 94. What is x?
A. 21
B. 37
C. 17
D. 20
Correct Answer: D
Using y=37−x in the second equation gives x=20.
CSS - PMS - CCE - PCS - Mathematics
Equations
If 4x + 3 − 2 = 61, what is x?
A. 60
B. 13
C. 17
D. 15
Correct Answer: D
4x = 61 − 3 + 2 = 60; therefore x=15.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: 7(x + 14) = 168.
A. 12
B. 10
C. 24
D. -4
Correct Answer: B
Divide by 7: x+14=24; hence x=10.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve for x: 2x + 9 = 19.
A. 5
B. 10
C. 4
D. 6
Correct Answer: A
2x = 19 − 9 = 10; x = 10 ÷ 2 = 5.