Using Substitution to Solve an Equation
Flashcard
•
Mathematics
•
6th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is substitution in solving equations?
Back
Substitution is a method used to replace a variable with a number or another expression to simplify and solve an equation.
2.
FLASHCARD QUESTION
Front
What does it mean to solve for a variable?
Back
To solve for a variable means to find the value of that variable that makes the equation true.
3.
FLASHCARD QUESTION
Front
What is the first step in solving the equation 2x - 5 = 15?
Back
Add 5 to both sides of the equation to isolate the term with the variable.
4.
FLASHCARD QUESTION
Front
How do you check if x = 3 is a solution for the equation 3x + 2 = 11?
Back
Substitute 3 for x in the equation: 3(3) + 2 = 11. If both sides are equal, then x = 3 is a solution.
5.
FLASHCARD QUESTION
Front
What is the solution to the equation 45 + z = 92?
Back
z = 92 - 45, so z = 47.
6.
FLASHCARD QUESTION
Front
How do you isolate the variable b in the equation 6b = 30?
Back
Divide both sides of the equation by 6 to find b.
7.
FLASHCARD QUESTION
Front
What is the value of x in the equation x + 12 = 20?
Back
x = 20 - 12, so x = 8.
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