Lesson 2 3 equations and solution
- 1. Name ______________________________ Date ____________________ Mrs. Labuski / Mrs. Rooney Period ______ Lesson 2-3 Equations & Solutions VOCABULARY DEFINTION EXAMPLE A mathematical 4•2=8 EQUATION statement that two 3+2=5 quantities are equal. 4x=8 The value of the x=2 SOLUTION variable that makes the equation true. s+2=5 s=3 1. 9 + x = 21 for x = 11 5. 28 + c = 43 for c = 15 9. 73 - f = 29 for f = 54 9 + 11 = 21 28 + 15 = 43 73 - 54 = 29 20 ≠ 21 43=43 29 = 29 No; it is not a solution it is a solution it is a solution 2. n - 12 = 5 for n = 17 6. u ÷ 11 = 10 for u = 111 10. 67 - j = 25 for j = 42 17-12 = 5 111 ÷ 11 = 10 67 - 42 = 25 5=5 10.09 ≠ 10 25=25 it is a solution No; it is not a solution it is a solution 3. 25 • r = 75 for r = 3 7. k/8 =4 for k = 24 11. 39 ÷ v = 13 for v = 3 25 • 3 = 75 24 ÷ 8= 4 39 ÷ 3 = 13 75=75 3≠4 13=13 it is a solution No; it is not a solution it is a solution 4. 72 ÷ q = 8 for q = 9 12. 88 + d = 100 for d = 2 8. 16x = 48 for x = 3 72 ÷ 9 = 8 88 + 2 = 100 16 • 3 = 48 90 ≠ 100 8=8 48=48 No; it is not a solution it is a solution it is a solution Name ______________________________ Date ____________________
- 2. Mrs. Labuski / Mrs. Rooney Period ______ Lesson 2-3 Equations & Solutions VOCABULARY DEFINTION EXAMPLE EQUATION SOLUTION 1. 9 + x = 21 for x = 11 ___________________ ___________________ 8. 16x = 48 for x = 3 2. n - 12 = 5 for n = 17 ___________________ ___________________ 9. 73 - f = 29 for f = 54 3. 25 • r = 75 for r = 3 ___________________ ___________________ 10. 67 - j = 25 for j = 42 4. 72 ÷ q = 8 for q = 9 ___________________ ___________________ 11. 39 ÷ v = 13 for v = 3 5. 28 + c = 43 for c = 15 ___________________ ___________________ 12. 88 + d = 100 for d = 2 6. u ÷ 11 = 10 for u = 111 ___________________ ___________________ 7. k/8 =4 for k = 24