4
It is the commutative property of addition : A+B = B+AMultiplication has the same property, whereas in subtraction and division the order of the terms changes the result.
5b = 8 therefore b = 8/5 therefore b = 1.6
84
a+b+c+d+e = 30 (i) c+e = 14 (ii) d+b = 1 (iii) a = 2b-1 (iv) a+c = 10 (v) By (i)-(ii)-(iii): a = 15 then, by (iv): b = 8 and by (v): c = -5 Also, b = 8 so by (iii): d = -7 and then by (i), e = 19
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
A=8 B=4 C=14 Yes, I know I'm a genius. Mak - the all knowing one. MWAHAHAH!
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
WOuldn't it be 4b-8
A plus b 4 can be assumed that mathematically, a = +4.
Addition is commutative. That is, a + b = b + a for all a, b