CSS - PMS - CCE - PCS - Mathematics
Equations
Solve the simultaneous equations: x + y = 20 and 5x + 4y = 98. What is x?
A. 19
B. 2
C. 20
D. 18
Correct Answer: D
Using y=20−x in the second equation gives x=18.
CSS - PMS - CCE - PCS - Mathematics
Equations
If 4x + 3 − 4 = 51, what is x?
A. 13
B. 11
C. 15
D. 52
Correct Answer: A
4x = 51 − 3 + 4 = 52; therefore x=13.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: 8(x + 5) = 104.
A. 8
B. 10
C. 13
D. 3
Correct Answer: A
Divide by 8: x+5=13; hence x=8.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve for x: 2x + 15 = 21.
A. 2
B. 3
C. 4
D. 6
Correct Answer: B
2x = 21 − 15 = 6; x = 6 ÷ 2 = 3.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: x/6 + 5 = 32.
A. 27
B. 33
C. 162
D. 21
Correct Answer: A
x/6=27=27; multiplying by 6 gives x=27.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve the simultaneous equations: x + y = 29 and 4x + 2y = 92. What is x?
A. 12
B. 29
C. 18
D. 17
Correct Answer: D
Using y=29−x in the second equation gives x=17.
CSS - PMS - CCE - PCS - Mathematics
Equations
If 4x + 6 − 3 = 51, what is x?
A. 48
B. 10
C. 12
D. 14
Correct Answer: C
4x = 51 − 6 + 3 = 48; therefore x=12.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: 2(x + 2) = 18.
A. 8
B. 7
C. 5
D. 9
Correct Answer: B
Divide by 2: x+2=9; hence x=7.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve for x: 5x + 21 = 31.
A. 3
B. 10
C. 1
D. 2
Correct Answer: D
5x = 31 − 21 = 10; x = 10 ÷ 5 = 2.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: x/5 + 6 = 32.
A. 31
B. 21
C. 26
D. 130
Correct Answer: C
x/5=26=26; multiplying by 5 gives x=26.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve the simultaneous equations: x + y = 21 and 3x + 4y = 68. What is x?
A. 21
B. 17
C. 5
D. 16
Correct Answer: D
Using y=21−x in the second equation gives x=16.
CSS - PMS - CCE - PCS - Mathematics
Equations
If 4x + 9 − 2 = 51, what is x?
A. 13
B. 44
C. 9
D. 11
Correct Answer: D
4x = 51 − 9 + 2 = 44; therefore x=11.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: 3(x + 14) = 60.
A. 6
B. 8
C. 20
D. -8
Correct Answer: A
Divide by 3: x+14=20; hence x=6.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve for x: 8x + 3 = 243.
A. 30
B. 31
C. 29
D. 240
Correct Answer: A
8x = 243 − 3 = 240; x = 240 ÷ 8 = 30.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: x/4 + 7 = 32.
A. 25
B. 100
C. 29
D. 21
Correct Answer: A
x/4=25=25; multiplying by 4 gives x=25.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve the simultaneous equations: x + y = 30 and 2x + 2y = 60. What is x?
A. 15
B. 16
C. 17
D. 30
Correct Answer: A
Using y=30−x in the second equation gives x=15.
CSS - PMS - CCE - PCS - Mathematics
Equations
If 4x + 3 − 6 = 37, what is x?
A. 8
B. 10
C. 40
D. 12
Correct Answer: B
4x = 37 − 3 + 6 = 40; therefore x=10.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: 4(x + 11) = 64.
A. 16
B. 7
C. -6
D. 5
Correct Answer: D
Divide by 4: x+11=16; hence x=5.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve for x: 2x + 9 = 67.
A. 29
B. 58
C. 28
D. 30
Correct Answer: A
2x = 67 − 9 = 58; x = 58 ÷ 2 = 29.
CSS - PMS - CCE - PCS - Mathematics
Equations
Solve: x/3 + 1 = 25.
A. 72
B. 21
C. 27
D. 24
Correct Answer: D
x/3=24=24; multiplying by 3 gives x=24.