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Q: What does a plus b if a equals 4 and b equals 8?

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Evaluate -4(a+b) - 10a/b when a=8 and b=5

3b+4 = b+12 3b-b = 12-4 2b = 8 b = 4

3 + 5 = 4*b so 8 = 4*b Divide both sides by 4: 2 = b

8=6+b2b=4

in order to solve this problem you have to solve for x first wich you are given the data to pre forme so x=4 and x.2=8 and 8=y and y-4=4=a=x so a+8=12 and 12=b

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-8 + b = 4 add 8 to both sides: b = 12

4

Evaluate -4(a+b) - 10a/b when a=8 and b=5

4

3b+4 = b+12 3b-b = 12-4 2b = 8 b = 4

3 + 5 = 4*b so 8 = 4*b Divide both sides by 4: 2 = b

8=6+b2b=4

A=8 B=4 C=14 Yes, I know I'm a genius. Mak - the all knowing one. MWAHAHAH!

in order to solve this problem you have to solve for x first wich you are given the data to pre forme so x=4 and x.2=8 and 8=y and y-4=4=a=x so a+8=12 and 12=b

WOuldn't it be 4b-8

Addition is commutative. That is, a + b = b + a for all a, b

5b = 8 b = 8/5 or 1.6