Learn the steps for solving a system of equations by substitution

Learn the steps for solving a system of equations by substitution

Assessment

Interactive Video

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Quizizz Content

Mathematics

11th Grade - University

Hard

The video tutorial explains solving systems of equations using the substitution method. It begins by identifying variables with a coefficient of 1, then solving for the variable using inverse operations. The solved variable is substituted into another equation, applying the distributive property to simplify. Finally, the tutorial demonstrates finding the intersection point of the equations, providing a step-by-step guide to solving for both variables.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving equations by substitution?

Apply the distributive property

Identify the variable with a coefficient of 1

Solve for the variable using inverse operations

Plug in the quantity the variable is equal to

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you solve for a variable using inverse operations?

Subtract or add terms to isolate the variable

Divide the equation by the variable

Multiply the variable by its coefficient

Add the variable to both sides

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What symbol is used to represent substitution in equations?

Brackets

Parentheses

Curly braces

Quotation marks

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the distributive property important in substitution?

It helps to simplify the equation

It groups terms together

It allows for the multiplication of terms

It ensures the equation is balanced

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of combining like terms in the equation 3X - 8X?

5X

-5X

-11X

11X

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you find the value of Y once X is known?

Divide X by the coefficient of Y

Substitute X into the original equation

Add X to the equation

Multiply X by the coefficient of Y

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the coordinates of the point of intersection in this problem?

(6/5, 28/5)

(5/28, 6/5)

(-28/5, 6/5)

(28/5, -6/5)