Exploring Rational Expressions: Addition and Subtraction

What is the first step to solve the equation 9 - 3x = 18?

• Subtract 9 from both sides

• Multiply by 3

• Divide by -3

• Add 3x to both sides

Tags

CCSS.7.EE.B.4A

After subtracting 9 from both sides in the equation 9 - 3x = 18, what is the next step?

• Subtract 3x

• Multiply by -3

• Divide by -3

• Add 9

Tags

CCSS.HSA.REI.A.1

In the equation 23 = x/3 + 26, what should be subtracted from both sides first?

• x

• 3

• 23

• 26

Tags

CCSS.7.EE.B.4A

How do you isolate x in the equation 23 = x/3 + 26 after subtracting 26 from both sides?

• Subtract 3

• Add 3

• Divide by 3

• Multiply by 3

Tags

CCSS.7.EE.B.4A

In the equation 5x + 1 = 3x + 5, what is the first step to solve for x?

• Subtract 1 from both sides

• Subtract 3x from both sides

• Add 1 to both sides

• Subtract 5x from both sides

After simplifying 5x + 1 = 3x + 5, what does the equation reduce to?

• x = 4

• 2x = 6

• 2x = 4

• x = 2

In the equation 11 - 5H = -3H + 3, which term should be moved first to isolate H?

• Add 3 to both sides

• Subtract 11 from both sides

• Add 5H to both sides

• Subtract 3H from both sides

What is the final value of H in the equation 11 - 5H = -3H + 3?

• H = 4

• H = -8

• H = -4

• H = 8

In simplifying expressions, what property is used to multiply terms inside parentheses by a number outside?

• Commutative property

• Distributive property

• Identity property

• Associative property

Tags

CCSS.6.EE.A.3

When combining like terms 4y - 3y, what is the result?

• 7y

• y

• 1y

• -y

Tags

CCSS.7.EE.A.1