Algebraic Equations Substitution

Which of the following expressions contains the variables x, y, and z?

• 4x + 6y + 10z

• 4x + 6y

• 4x + 10z

• 6y +10z

Translate this phrase into an algebraic expression.
24 more than Victoria's test score. 
Use d to represent Victoria's test score.

• 24x

• x - 24

• x + 24

• x/24

Translate this phrase into an algebraic expression.
8 less than the product of 4 and a number
Use the variable m to represent the unknown number.

• 4m + 8

• 8m - 4

• 8m + 4

• 4m - 8

Evaluate the expression using the values
 m = 7, r = 8, and t = 2.
4m + t

• 30

• 28

• 26

• 14

You are given the equation
2x + 3y = 6
Substitute the values (3, 0) into the equation. Which equation below shows a correct substitution? 2(​ (a)   )+3(​​ (b)   ) = 6

• 3

• 0

• 3x

• 0y

• 6

• 9

If x = 2, in the equation y = 3x - 5, what is the value of y?

b² + 4
when b = 3

• 10

• 12

• 13

• 11

Evaluate 4y  if       y = 3

• 7

• 12

6a - 3d
when a = 1, d = 2

• 3

• 12

• 1

• 0

Evaluate the expression when n = 11; 3n

• 8

• 14

• 33

• 30