➕ Algebra 1 · Equations
Solving Two-Step Equations flashcards
Say the answer out loud before you flip. Cards you miss come back sooner; cards you know come back later. That spacing is what builds long-term memory.
All 11 flashcards at a glance
Card 1
What is an inverse operation?
The operation that undoes another one: addition and subtraction, multiplication and division.
Card 2
What is the first step to solve 3x + 7 = 22?
Subtract 7 from both sides to get 3x = 15.
Card 3
What is the second step after 3x = 15?
Divide both sides by 3 to get x = 5.
Card 4
Solve 5x − 10 = 20.
x = 6. Add 10 to get 5x = 30, then divide by 5.
Card 5
What must you do to the other side when you change one side?
Exactly the same thing. That keeps the equation balanced.
Card 6
What is a coefficient?
The number multiplying a variable, like the 3 in 3x.
Card 7
What is a constant?
A plain number with no variable, like the 7 in 3x + 7.
Card 8
How do you check a solution?
Substitute it for the variable. If both sides match, it is correct.
Card 9
What does SADMEP stand for?
Undo in the reverse of PEMDAS: Subtract/Add, Divide/Multiply, Exponents, Parentheses.
Card 10
Solve x/4 + 2 = 6.
x = 16. Subtract 2 to get x/4 = 4, then multiply by 4.
Card 11
Solve −2x + 1 = 9.
x = −4. Subtract 1 to get −2x = 8, then divide by −2.