8M: 2-3 QC (solving 2-step equations)

1. Solve the equation below. 10 r + 4 = 5 *Just write the number for the answer. 2. Solve the equation below. -10 - 6x = 110 *Just write the number for the answer. 3. Solve the equation below. 3p - 2 = -29 *Just write the number for the answer. 4. Solve the equation below. 1 - r = -5 *Just write the number for the answer. 5. Solve the equation below. -9 + n 4 = -7 *Just write the number for the answer. 6. Solve the equation below. 4 + 2.2h = -3.7 *Just write the number for the answer. 7. Solve the equation below. -5g + 2.3 = -18.8 *Just write the number for the answer. 8. Solve the equation below. -6t - 7 = 17 *Just write the number for the answer. 9. Polly purchased softball equipment and uniforms for a total cost of $1,836. The equipment cost $612, and the uniforms cost $25.50 each. Which equation could be used to find out how many uniforms the school purchased? x/1836 = 612(25.50) 1836 = 612x + 25.50 1836 = 612 + 25.50x 1836/25.50 + x = 612 10. The USDA (U.S. Department of Agriculture) recommends 2,500 calories per day for teenage boys. If you double the number of calories per day that the USDA recommends for young children, and then subtract 100, you get the number of calories per day recommended for teenage boys. Which equation could be used to calculate the number of calories per day recommended for young children? 2500 = 100 - 2x 2500 = 2x -100 -100 = 2500 + 2x 11. Ms. Morris joined a local gym. They charged her a $50 sign-up fee plus $45 per month. If she paid a total of $455, how many months, m, was she a member at the gym? Which equation represents this situation?50 + 45 m = 45550 m + 45 = 45550 - 45 m = 455455 + 45 m = 5012. Ms. Morris joined a local gym. They charged her a $50 sign-up fee plus $45 per month. If she paid a total of $455, how many months, m, was she a member at the gym? months 13. Write an equation for the given words. 7 less than 15 times a number is 80.7 - 15 n = 807 - 15 + n = 8015 n - 7 = 807(15 - n) = 8014. Write an equation for the sentence below. The sum of three times a number and 16is the same as 54. 3 n - 16 = 543 n + 16 = 543 n = 16 + 543( n + 16) = 54 |

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