Substituting Values into Unknowns

Evaluate the expression for x = 3: 2x + 5

What is the value of the expression for y = 4: 7 - y

• 3
• -3
• 1
• -1

Given z = 6, what is the result of the expression: 3z - 4

Calculate the expression when a = 2: 4a + 3

Determine the value of the expression for x = 5: 2x - 9

• -4
• 1
• 11
• -11

If b = 7, find the result of the expression: 5b + 2

Evaluate the expression for n = 4: 6n + 11

What is the value of the expression for y = 3: 9 - y

• 6
• -6
• 2
• -2

Given z = 8, what is the result of the expression: 4z - 7

Calculate the expression when a = 5: 3a + 6