Solving for Variables with Multiplication and Division

What is the first step in solving for Y in the equation y/9 = x?

• Add 9 to both sides

• Divide both sides by 9

• Subtract 9 from both sides

• Multiply both sides by 9

Tags

CCSS.6.EE.B.7

Why do we need to multiply both sides of the equation by 9?

• To subtract 9 from the left-hand side

• To divide the right-hand side by 9

• To add 9 to the right-hand side

• To cancel out the 9 on the left-hand side

Tags

CCSS.HSA.REI.A.1

What happens to the 9 on the left-hand side after multiplying both sides by 9?

• It gets added to Y

• It cancels out

• It gets subtracted from Y

• It remains as it is

Tags

CCSS.HSA.REI.A.1

What is the simplified form of the equation after isolating Y?

• Y = x/9

• Y = 9/x

• Y = 9x

• Y = x + 9

Tags

CCSS.6.EE.C.9

In the final equation, how is the product of a number and a letter usually written?

• Separated by a comma

• Letter first, then number

• Number first, then letter

• Separated by a plus sign

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

What is the final form of the equation y = 9 * x usually written as?

• y = x9

• y = x + 9

• y = 9x

• y = 9 + x

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3