equationso mixed review

What is the definition of a variable?

• The letter used to represent a quantity
• The little number or letter used to raise to a power
• The number in front of a variable
• The number with no variable

Tags

CCSS.6.EE.A.2B

In this expression, 2x + 6y - 10, which are the coefficients?

• 2, 6, and -10
• x and y
• 2 and 6
• -10

Tags

CCSS.6.EE.A.2B

Using the "opposite operation" to "undo" and isolate the variable when solving an equation is more commonly called...

• Inverse operations
• math
• variable
• PEMDAS

Tags

CCSS.7.EE.B.4A

Solve.    -13 = n + 18

• 5
• -5
• -21
• -31

Tags

CCSS.6.EE.B.7

Simplify:
5(3x+1)

• 15x+1
• 15x+5
• 8x+1
• 8x+6

Tags

CCSS.6.EE.A.3

10x + 9 = 4x - 9

• 0
• 3
• -3
• -18

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

What is the inverse operation of adding (+)?

• Adding (+)
• Subtracting (-)
• Multiplying (×)
• Dividing (÷)

Tags

CCSS.HSA.REI.A.1

-4x + 1 = 21

• x=120
• x=5
• x=30
• x=-5

Tags

CCSS.7.EE.B.4A

Solve:
3(x - 2) = 18

• 6.7
• 4
• 8
• -4

Tags

CCSS.7.EE.B.4A

Solve:
6(5x - 3) + 2 = 14

• 2
• .5
• -1
• 1

Tags

CCSS.7.EE.B.4A