TEKS.MATH.7.11A

Rachel and Sharon are splitting up their Pokemon cards.  Rachel has 4 fewer than 3 times as many as Sharon.  Together they have 100 cards.  Which equation could be used to solve for how many cards Sharon had originally?

• n + (3n - 4) = 100
• n - (3n - 4) = 100
• n + (4 - 3n) = 100
• 4 - 3n = 100

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TEKS.MATH.7.11A

Simplify the expression: 7+3(1 - 2x) 

• 21 - 6x
• 10 - 2x
• 10 - 20x
• 10 - 6x

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TEKS.MATH.7.11A

Solve:
2(2x + 3) = -6(x + 9)

• 1.2
• 6
• -6
• 7.5

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TEKS.MATH.7.11A

Find the sum:
2(x + 3) + 3(3x - 2)

• 11x
• 11x - 12
• 11x + 12
• 0

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TEKS.MATH.7.11A

The objective when solving an equation is to....

• isolate the variable.
• check the solution.
• guess and check.
• Combine Like Terms.

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TEKS.MATH.7.11A

-6n - 8 = 22

• -5
• 5
• 3/7
• -3/7

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TEKS.MATH.7.11A

x/-2 > 4

• x > -8
• x < -8
• x > -4
• x < -6

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TEKS.MATH.7.11A

3c + 5 = 23

• c = 3
• c = 7
• c = 6
• c = 18

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TEKS.MATH.7.11A

What would be the best first step to solving the equation?

• subtract   ¹/₁₀  from both sides
• subtract   -³/₅  from both sides
• add ¹/₁₀  to both sides
• add ³/₅ to both sides

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TEKS.MATH.7.11A

6z + 3 -4z = 9

• z = 3
• z = 60
• z = 30
• z = 1

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TEKS.MATH.7.11A