Substitution on Expressions

If m+a=27 and a=4

then m+4=27

• REFLEXIVE PROPERTY

• TRANSITIVE PRPERTY

• SUBSITUTION PROPERTY

• SYMMETRIC PROPERTY

n - y; for n=8 and y=6

If x = 5, find the value of 7x-1.

• 34

• 36

• 35

• 37

Evaluate 2x + 5y - 4 when x = 11 and y = 3

Mathematical Equivalence

ON

Evaluate the expression. Let g = 3 h = 9

4g + 2h + 4

Mathematical Equivalence

ON

Evaluate the expression for the given values. 5x - 3y + 2z

• 17

• 19

• 13

• 29

What is the value of 2a - 3b + 6 when a = 2 and b = -5?

Mathematical Equivalence

ON

Evaluate 8.7j – 9.8k when j = 7 and k = 4.

Mathematical Equivalence

ON

Answer explanation

Evaluate 8.7j – 9.8k when j = 7 and k = 4.

First, substitute for j and k:

8.7(7) - 9.8(4) then multiply.

60.9 - 39.2 and finally subtract

21.7

Tags

CCSS.MATH.CONTENT.7.EE.B.4.a

If y = 4, find the value of 3y+5.

• 27

• 12

• 17

• 18