Solving an Equation by Subtracting
An explanation of how to solve an algebraic equation by dividing.
Subject: tactic
Transcript: KNOW THE RULE, WE NEED TO UNDERSTAND THE TACTICS THAT ARE USED TO SOLVE EQUATIONS. OUR GOAL IS TO END UP WITH A VARIABLE BY ITSELF ON ONE SIDE AND THE
Solving an Equation by Adding
An explanation of how to solve an algebraic equation by subtracting.
Subject: tactic
Transcript: ? CERTAINLY DOES. SO OUR SOLUTION IS CORRECT. SOLVING THIS EQUATION GAVE US ANOTHER TACTIC. IT'S THIS. IF WE'RE GIVEN A VARIABLE PLUS A CONSTANT IN AN EQUATION
Solving an Equation by Multiplying
An explanation of how to solve an algebraic equation by adding.
Subject: tactic
Transcript: NARRATOR: HERE'S ANOTHER KIND OF EQUATION. X MINUS 7 EQUALS 15. IS THERE A TACTIC WE CAN USE TO GIVE US THE VALUE OF X? WE KNOW THAT IF WE HAVE A
Four Basic Tactics for Equations
A summary of the four basic tactics for solving equations.
Subject: tactic
Transcript: NARRATOR: FOUR BASIC TACTICS TO USE IN SOLVING EQUATIONS. IF A VARIABLE HAS A COEFFICIENT OTHER THAN 1, WE ELIMINATE THE COEFFICIENT BY DIVIDING
Additive Inverses
An explanation of how to solve an algebraic equation by multiplying.
Subject: tactic
Transcript: NARRATOR: THERE'S ONE MORE OF THESE TACTICS, WE USE IT TO DEAL WITH EQUATIONS LIKE X OVER 5 EQUALS 3. HOW DO WE FIND THE VALUE OF X? MULTIPLY BOTH
Practical Problem: Finding the Price of Chairs
A practical problem is used to demonstrate the strategy of doing the addition and subtraction before doing the division when solving an equation.
Subject: tactic
Transcript: NARRATOR: EQUATIONS OFTEN REQUIRE SEVERAL STEPS. AS WE CARRY OUT EACH STEP, WE'LL APPLY THE LAWS AND TACTICS THAT WE'VE LEARNED SO FAR. LET'S LOOK