Equations

Simplify the following expression: 3m + 4m + (-2m) + 4 - 8

• 1

• 5m - 4

• m

• 9m + 12

Tags

CCSS.7.EE.A.1

What are the steps to solve this problem: 2(3x - 4) = 12

• Do the inverse operation of multiplication.

• Distribute the 2 to the terms inside the parenthesis.

• Do the inverse operation of subtraction.

When solving equations with fractions (ex: 3/4x = 15) you have to multiply by its ​ ​ (a)  

• reciprocal
• inverse operation
• opposite
• expression
• solution

Solve : 3/4 x = 15 (just input number / no variable)

Mathematical Equivalence

ON

What button should I press to convert a decimal to a fraction or a fraction to a decimal?

Identify between expressions and equations:

Groups:

(a) Expressions

,

(b) Equations

• 5k + 4 = 20

• 1/2 (m - 10)

• 1/2 n - 5 = 20

• 5m - 2m

• 5m + 2

• 0.8k = 16

• 2(m+3)

• m + 8 = 20

To solve multi-step equations first combine like terms on the same side of the equations, then ______ the variable.

Match the following:

• 6m

• 2m - 9m

• 5m

• 3m + 5m - 2m

• 8m

• 2 ( m + 3m )

• -2m

• 1/2m + 1/2m - 3m

• -7m

• m + m + 4m - m

Tags

CCSS.7.EE.A.1

The number in front of a variable is called the ​ (a)  

• coefficient
• variable
• constant
• term
• expression

Tags

CCSS.6.EE.A.2B

Place the correct numbers in the boxes.

a

b

c

d

30

21

6

1