How to use substitution to solve a system of equations

The video tutorial explains how to solve a system of equations using substitution. It begins by identifying a variable with a coefficient of 1 and solving for it. The solution is then substituted into another equation, which is simplified to find the value of the second variable. The final solution is presented as a coordinate point, representing the intersection of the equations when graphed.

What is the first step in solving for a variable with a coefficient of 1?

• Rearrange the equation to isolate the variable

• Divide both sides by 3

• Add 5 to both sides

• Multiply both sides by 2

After isolating Y, what should you do next in the process?

• Add 10 to Y

• Multiply Y by 3

• Divide Y by 2

• Substitute Y into another equation

Which property is used to simplify the equation after substitution?

• Associative Property

• Distributive Property

• Commutative Property

• Identity Property

What is the value of X after solving the equation?

• 1

• 0

• 2

• -1

How is the solution represented once both X and Y are found?

• As a fraction

• As a coordinate point

• As a percentage

• As a decimal