Substution lesson and quiz by AI

When is it most beneficial to use the substitution method?

• When one variable has a coefficient of 1 or -1

• When both variables have coefficients of 2

• When graphing is not possible

• When the system is inconsistent

What is the first step in the substitution method?

• Adding the equations together

• Multiplying both equations

• Isolating a variable with a coefficient of 1 or -1

• Graphing the equations

What do you do after isolating a variable in the substitution method?

• Multiply the isolated variable by 2

• Graph the isolated variable

• Substitute the isolated variable into the other equation

• Add the isolated variable to the other equation

What is the result of substituting the isolated variable into the other equation?

• A graph of the system

• An equation with only one variable

• A system with two variables

• A solution with no variables