stop subtracting system of equations

The video tutorial provides a strategy for solving systems of equations by focusing on achieving opposite coefficients for elimination. It advises against using the subtraction method and instead recommends adding equations after adjusting coefficients using scalars. The tutorial walks through the process of solving for variables and emphasizes avoiding negative numbers for simplicity.

What is the primary goal when solving a system of equations?

• To eliminate one of the variables

• To find the sum of all coefficients

• To multiply all terms by zero

• To divide the equations by a common factor

Why is it recommended to avoid the subtraction method when solving systems of equations?

• It is a slower method

• It requires more steps

• It can lead to errors with negative numbers

• It is not applicable to all equations

What is the purpose of multiplying an equation by a scalar?

• To eliminate all variables

• To change the equation's solution

• To simplify the equation

• To make the coefficients equal and opposite

When adding two equations, what should be aligned vertically?

• The constants

• The coefficients

• The variables

• The scalars

After finding the value of one variable, what is the next step?

• Add it to the other variable

• Substitute it back into one of the original equations

• Divide it by the coefficient

• Multiply the variable by a scalar