Grade 7 math test questions for one-step subtraction equations

📚 Quick Study Guide

• 🔢 A one-step subtraction equation is an algebraic equation that can be solved by performing only one subtraction operation.
• ➖ The goal is to isolate the variable (usually represented by a letter like $x$ or $y$) on one side of the equation.
• 💡 To solve, perform the inverse operation to undo the subtraction. If the equation is $x + a = b$, subtract $a$ from both sides to get $x = b - a$.
• 📝 Always check your answer by substituting it back into the original equation to ensure it makes the equation true.
• ➕ Remember the properties of equality: Whatever you do to one side of the equation, you must do to the other side to maintain balance.

✍️ Practice Quiz

1. What is the solution to the equation $x + 5 = 12$?
   1. A) 6
   2. B) 7
   3. C) 8
   4. D) 17
2. Solve for $y$: $y + 3 = 9$
   1. A) 3
   2. B) 6
   3. C) 12
   4. D) 27
3. What value of $z$ satisfies the equation $z + 8 = 15$?
   1. A) 5
   2. B) 6
   3. C) 7
   4. D) 23
4. Find the value of $a$ in the equation $a + 10 = 20$.
   1. A) 2
   2. B) 10
   3. C) 30
   4. D) 200
5. Solve: $b + 1 = 11$
   1. A) 10
   2. B) 12
   3. C) 11
   4. D) 13
6. What is $c$ if $c + 7 = 14$?
   1. A) 2
   2. B) 6
   3. C) 7
   4. D) 21
7. If $d + 2 = 8$, then $d$ equals:
   1. A) 4
   2. B) 6
   3. C) 10
   4. D) 16