Check Solutions Pre Algebra

• A

• B

• C

• D

Tags

CCSS.7.EE.B.4B

• A

• B

• C

• D

Tags

CCSS.7.EE.B.4B

• A

• B

• C

• D

Tags

CCSS.7.EE.B.4B

• 0

• 4

• 3

• 2

• -10

Tags

CCSS.6.EE.B.5

• –6x + 1 = 45

• –3(3x) = 45

• –6x – 3 = 45

• –6x = 44

Tags

CCSS.7.EE.B.4A

Is (1,10) a solution to

y=7x+5

y=x+9

• yes

• no

Carlos solved the equation and got x = -5. When he substituted his answer back into the equation to check his work, he got -10 = -22 and realized he had made a mistake. Where is his mistake?

• -2 - 3 = -1 , so x = -1

• Distribute the 5 to the 3 to get 15 instead of 3

• Subtract 5x from each side

• Add 2 to each side

Tags

CCSS.HSA.REI.A.1

Solve for x

• x = 2

• x = -2

• x = -10

• x = 4

Tags

CCSS.6.EE.B.7

Solve for x

• x = 2

• x = -2

• x = -10

• x = 4

Tags

CCSS.6.EE.B.7

• open circle at 4

• closed circle at 4

• graphed to the right

• graphed to the left

Tags

CCSS.7.EE.B.4B