Solving Linear Equations and Inequalities

The video tutorial walks through solving an SAT Math problem involving the equation 2x - 5. It begins by gathering X terms on one side, isolating X, and solving for its value. Once X is determined, it substitutes the value back into the expression 2x - 5 to find the final answer, which is -15.

What is the first step in solving the equation in the SAT Math prep question?

• Subtract 7x from both sides

• Divide both sides by 7

• Add 7x to both sides

• Multiply both sides by 7

Tags

CCSS.7.EE.B.4A

After gathering the X terms on one side, what is the resulting equation?

• -3x + 8 = 7

• 3x + 8 = 7

• -3x - 8 = 7

• 3x - 8 = 7

Tags

CCSS.7.EE.B.4A

How do you isolate the X term in the equation -3x - 8 = 7?

• Add 8 to both sides

• Subtract 8 from both sides

• Multiply both sides by 8

• Divide both sides by 8

Tags

CCSS.6.EE.B.7

What is the value of X after solving the equation -3x = 15?

• 5

• -5

• 3

• -3

Tags

CCSS.6.EE.A.2C

What is the final value of 2x - 5 when x = -5?

• -10

• -15

• 10

• 15

Tags

CCSS.6.EE.A.2C