1. 5r - 7 - 3r + r + 4r + 9 + 6 - 2r = (5r - 3r + r + 4r - 2r) + (-7 + 9 + 6) = 5r + 8
2. -9p + 3 + 4p + 7p - 4p - 4p = (-9p + 4p + 7p - 4p - 4p) + 3 = -6p + 3
3. 8p - 3 + 9p + 6p + 2p - 6p - 3p - 9p = (8p + 9p + 6p + 2p - 6p - 3p - 9p) - 3 = 7p - 3
4. -6c + 2c - 4c + 2 - 4c + 6c - 1 - 3 + 5c = (-6c + 2c - 4c - 4c + 6c + 5c) + (2 - 1 - 3) = -1c - 2
5. -9v - 9 - 5v - 5 - v + 2 - 8 - 9 + 7v + 5v = (-9v - 5v - v + 7v + 5v) + (-9 - 5 + 2 - 8 - 9) = -3v - 20
6. -g - 4 - 5 - 9 + 5g + 7 - 9 + g - 9g = (-g + 5g + g - 9g) + (-4 - 5 - 9 + 7 - 9) = -4g - 20
7. 3 + 8 - 3z - 5 - 9z - 1 - 6 - 4 = (-3z - 9z) + (3 + 8 - 5 - 1 - 6 - 4) = -12z - 5
8. -9m - 8 - 3m + 8m - 7m + 4 + 3 + 4 - m = (-9m - 3m + 8m - 7m - m) + (-8 + 4 + 3 + 4) = -12m + 3
9. 3p - 3p + 3p + p + 7p - 7 - 4 - 3p - 7p = (3p - 3p + 3p + p + 7p - 3p - 7p) + (-7 - 4) = 1p - 11
10. 9c + 9 + 2 - 8c + 6c - 5c - 9 = (9c - 8c + 6c - 5c) + (9 + 2 - 9) = 2c + 2
Parent Tip: Review the logic above to help your child master the concept of algebra with pizzazz worksheet 38.
