- B. Solve what is asked. 5. Find the sum of (2c + 3) and (60 - 8). 6. Add (6 - d2 + 5d) and (-5d +9 - 702). 7. What is the sum of (8p - q + 11r - 9s) and (7q - 3s)? 8. Find the difference of (5e + 8f + 1) and (-2e + 5f - 6) 9. Subtract (10h - 11) from (12h + 3). 10. Whai is the difference of (2m - 7n + p - 3q) and (4n + q)? -
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Answer:
5.) (2c+3)+(6c-8)
= 2c+6c+3-8
= 8c-5
6.) (6-d²+5d)+(-5d+9-7d²
= -d²-7d²+5d-5d+6+9
= -9d²+15
7.) (8p-q+11r-9s)+(7q-3s)
= 8p-q+7q+11r-9s-3s
= 8p+6q+11r-12s
8.) (5e+8f+1) - (-2e+5f-6)
= (5e+8f+1) + (2e-5f+6)
= 5e+2e+8f-5f+1+6
= 7e+3f+7
9.) (12h+3) - (10h-11)
= (12h+3) + (-10h+11)
= 12h-10h+3+11
= 2h+14
10.) (2m-7n+p-3q) - (4n+q)
= (2m-7n+p-3q) + (-4n-q)
= 2m-7n-4n+p-3q-q
= 2m-11n+p-4q