Whan a = 2 and b = 6, 5a + 2b = 5*2 + 2*6 = 10 + 12 = 22
If a + b = 6, what is the value of 3a + 3b?
a = 6b = 9a + b = 6 + 9 = 15
b = 6
20
Whan a = 2 and b = 6, 5a + 2b = 5*2 + 2*6 = 10 + 12 = 22
If a + b = 6, what is the value of 3a + 3b?
a = 6b = 9a + b = 6 + 9 = 15
b = 6
Only when a and b have the same sign (or when a or b equals 0). Here are some examples: |2+4|=|2|+|4|--> |6|=|6|--> 6=6 TRUE |(-1)+(-3)|=|(-1)|+|(-3)|--> |(-4)|=1+3--> 4=4 TRUE |3+(-6)|=|3|+|(-6)|--> |(-3)|=3+6--> 3=9 FALSE
20
3 times 6 is 18 2 times 5 is 10 18 plus 10 is 28
2
30
6 === the what does B =
-8 -6(-8) = 48
6