Is a Value a Solution to an Equation

-(n - 8) = -2

• 6

• 10

• -10

• -6

Tags

CCSS.7.EE.B.4A

Solve the equation:
3(x - 1) = 2x + 9

• x = 12

• no solution

• x = 10

• x = 6

Find the value of the unknown variable

• A

• B

• C

• D

Tags

CCSS.7.EE.B.4A

Solve:
30 + 6t = 11t

• 3

• 5

• 6

• 30

Solve for x:
4(1-x) + 3x = -2(x+1)

• x = -6

• x = 6

• x = 3

Solve:
2(4x-3) - 8 = 4 + 2x

• x = 5/3

• x = 3

• x = 1

• x = 2

Solve:
5y + 34 = -2(-7y+1)

• y = -4

• y = 9

• y = 4

• y = 36/19

Solve the equation:
-8x - 8 + 3(x-2) = -3x + 2

• x = -8

• x = 8

• x = 2

• x = -2

What does it mean when an equation has infinitely many solutions?

• "To infinity and beyond"

• the equation is always TRUE when any value is substituted in for the variable

• the equation will NEVER be true when any value is substituted in for the variable

• only ONE solution will make the equation true

Tags

CCSS.8.EE.C.7A

• Infinitely Many Solutions

• No Solution

• x = -1

• x = 1