Solve two-step equations like 3x + 4 = 19

Answer Key - Grade 7 Math Worksheet

Circle the best answer, or write your answer on the line.

1. 1.

   Kira spots 4x + 2.5 = 8.5 on the decimal puzzle sheet. What is x?

   1.5
2. 2.

   Luz works on 6x − 1.2 = 3 during a rainy recess. What is x?

   0.7
3. 3.

   Noah finds 2x − 1/3 = 3 in the math book's puzzle corner. What is x?

   5/3
4. 4.

   Ren circles the tricky one on the worksheet: -3x − 6 = 9. What is x?

   -5
5. 5.

   Tala solves 0.5x + 1.25 = 4.75 with a freshly sharpened pencil. What is x?

   7
6. 6.

   Zee saves the hardest card, -2.5x + 5 = -10, for last. What is x?

   6
7. 7.

   Bo's study group has four answers for -5x + 10 = -15. Which value of x makes it true?

   • 1
   • -7
   • -25
   • 5
8. 8.

   Kira's bathtub already holds 4 gallons and fills 2.5 gallons each minute. After how many minutes does it hold 19 gallons?

   6
9. 9.

   Luz's art club buys 4 cans of paint, uses a $3 coupon, and pays $17. How much does one can of paint cost?

   $5
10. 10.

    Pia solves 4x − 7 = 13 with algebra: add 7 to both sides, then divide both sides by 4. Which arithmetic does the same steps in the same order?

    • (13 + 7) ÷ 4
    • 13 ÷ 4 + 7
    • (13 − 7) ÷ 4
    • (13 + 7) × 4