Solving Equations Basic

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Four times a number plus six IS 30.

• 4 + 6 = 30

• 4x + 6 = 30

• x + 4 times 6 = 30

• 30 = 4x

u/4=8

• 32

• 4

• 12

• 2

Tags

CCSS.6.EE.B.7

½ = -⅛a

• 4

• 8

• -4

Tags

CCSS.6.EE.B.7

3/8 d = 1/4

• 2/3

• - 2/3

• 1/3

• -1/3

Tags

CCSS.6.EE.B.7

Find the Error
What error did the student make when solving the equation:
5x + 6 =  66
5x - 6 = 66 -6
5x = 60
5*5x= 60*5
x = 300

• The student subtracted 6 from both sides instead of adding

• Student multiplied by 5 instead of dividing by 5

• Student got the wrong answer when subtracting 66-6

• The student did not correctly eliminate the variable from one side of the equation

Tags

CCSS.HSA.REI.A.1

The steps in solving 5b - 6 = 24 are: 

• Add 6 to both sides and divide both sides by 5

• Add 6 to both sides and multiply both sides by 5

• Subtract 6 from both sides then multiply both sides by 5

• Subtract 6 from both sides then divide both sides by 5

Tags

CCSS.7.EE.B.4A

The steps in solving
4b + 4 = 24 are: 

• Add 4 to both sides then divide both sides by 4

• Add 4 to both sides then multiply both sides by 4

• Subtract 4 from both sides then multiply both sides by 4

• Subtract 4 from both sides then divide both sides by 4

Tags

CCSS.HSA.REI.A.1

Solve: ⁴/₇ x - 9 = - 45

• 94

• 63

• -63

• -94.5

Tags

CCSS.7.EE.B.4A

Heather is a hairdresser and her customers pay $5 to reserve an appointment time and $12 for every hour Heather works on their hair style. As a back to school special she offers to lower her price per hour by $5. What equation represents the total amount paid to Heather, y, after x hours of hair styling?

• y = 5 + 12x

• y = 12x

• y = 7x + 5

• y = 12x + 12

Solve for 0≤x≤2π

4cos²x - 2 = 0

• π/3, 5π/3

• π/4, 7π/4

• 3π/4, 5π/4

• π/6, 11π/6

Tags

CCSS.HSF.TF.B.7