Pre Test Linear Equations

‘Five more than three times a number gives a solution of 17’ is:

• 3(n + 5) = 17
• 5n + 3 = 17
• 17 + 5 = 3n
• 3n + 5 = 17

Use substitution to find the value of a in 4a − 8 = -16

• a = 6
• a = -6
• a = 2
• a = -2

Solve 18 − 4x = 6

• x = 3
• x = -6
• x = 6
• x = -3

What is the value of y when x = -3?

• y=0
• y=5
• y=-1
• y=-3

From the graph, what is the value of x when y = 0?

• x = 2
• x = -2
• x = 1
• x = 0

To obtain x from x/5 − 2=1 you would:

• add 2 and multiply by 5.
• subtract 2 and multiply by 5.
• add 2 and divide by 5
• subtract 2 and divide by 5.

Solve  b/3− 7 = 2.

• b = 27
• b = 3
• b =-5/3
• b = -15

Solve 4(x − 2) = 28.

• x = 7
• x = 9
• x = 5
• x = 3.5

Solve 2d + 8 = 4d − 6.

• d = 1
• d = 14
• d =2 1/3
• d = 7

3x − 1 = x − 7. What is the value of x?

• x = 2
• x = 6
• x = 3
• x = -3