SOLUTION: Evaluate the the following expression 1) 6c-7d+8 if c=5;d=2 2) 7(x+y)+3(x-y) if x=6;y=10 3) -8(a+b)+4a-7b if a=7;b=6 4) 2x+y;if x=2;y=4 5) 9(2p-4q)if p=1/2;q=1/4

Algebra ->  Expressions -> SOLUTION: Evaluate the the following expression 1) 6c-7d+8 if c=5;d=2 2) 7(x+y)+3(x-y) if x=6;y=10 3) -8(a+b)+4a-7b if a=7;b=6 4) 2x+y;if x=2;y=4 5) 9(2p-4q)if p=1/2;q=1/4      Log On


   

Question 1091164: Evaluate the the following expression
1) 6c-7d+8 if c=5;d=2
2) 7(x+y)+3(x-y) if x=6;y=10
3) -8(a+b)+4a-7b if a=7;b=6
4) 2x+y;if x=2;y=4
5) 9(2p-4q)if p=1/2;q=1/4
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

Evaluate the the following expression:
1)
6c-7d%2B8 if c=5;d=2
6%2A5-7%2A2%2B8
30-14%2B8
38-14
24
2)
7%28x%2By%29%2B3%28x-y%29 if x=6;y=10
7%286%2B10%29%2B3%286-10%29
7%2816%29%2B3%28-4%29
112-12
100
3)
-8%28a%2Bb%29%2B4a-7b if a=7;b=6
-8%287%2B6%29%2B4%2A7-7%2A6
-8%2813%29%2B28-42
-104%2B28-42
-146%2B28
-118
4)
2x%2By;if x=2;y=4
2%2A2%2B4
4%2B4
8

5)
9%282p-4q%29if p=1%2F2;q=1%2F4
9%282%281%2F2%29-4%281%2F4%29%29
9%282%2F2%29-%284%2F4%29
9%281%29-%281%29
9-1
8