Whats the Difference What is the difference between

What’s the Difference? What is the difference between an expression and equation?

Coefficient Identify the coefficients in the expressions: 5 + 5 mn + 11 mn 6 x + 9 + 2 x + 7 + x

Write the Expression The sum of a number and 12

Simplify 8 n – 4 n² + 8 n - 10

Distributive Property 4(3 x + 2)

Substitution 5 x + 10; if x = 10

One-Step Equations X + 27 = 276

Two-Step Equation 6 x + 6 = 36

Word Problem At a restaurant, Mike and his three friends decided to divide the bill evenly. If each person paid $13 then what was the total bill?

Write the Expression The quotient of a number and 3

Simplify 3 m² + 4 m – 2 m + 3 m²

Distributive Property 3(x² + 3 x + 4)

Substitution 4 x – 20; if x is -5

One-Step Equation X ÷ 9 = 13

Two-Step Equation -4 x + 15 = 47

Word Problem How many boxes of envelopes can you buy with $12 if one box costs $3?

Write the Expression The product of a 4 and a number.

Simplify 7 x + 4 x + 6 y + x – 9 y

Distributive Property -4(8 x + 20)

Substitution 42/x + 5 y; if x is 6 and y is 3

One-Step Equation 11 x = 154

Two-Step Equation n/10 – 12 = 58

Word Problem You bought a magazine for $5 and four erasers. You spent a total of $25. How much did each eraser cost?

Write the expression 20 decreased by a number.

Distributive Property -6(4 x – 6)

Substitution 25 – 8 x + 18; if x is 3

One-Step Equation n – 21 = -44

Three-Step Equation 3(2 x + 3) = 81

Word Problem 331 students went on a field trip. Six buses were filled and 7 students went in a van. How many students were in each bus?

Write the Expression 8 less than a number

Factoring Out 21 x + 35

Factoring Out 5 b - 25

Factoring Out 18 n + 45

Variable on Each Side 2 n = 4 n - 16

Variable on Each Side 7 m – 5 = 6 m + 8

Variable on Each Side -2 b – 9 = 6 b + 15