A * b = 30
a - b = 1
a + b = 11
take ur last 2 equations, and add them
a - b = 1
a + b = 11
--------------add
2a = 12
a = 12/2
a = 6
now its just a matter of subbing
a + b = 11
6 + b = 11
b = 11 - 6
b = 5
so a = 6 and b = 5...whose product is 30, whose difference is 1, and whose sum is 11.
Answer:
2x
Step-by-step explanation:
x*1 is x
x/1 is also x
x+x=2x
Answer:
Step-by-step explanation:
b + 2 = b + 2
Answer:
1
--------------
y-1
with the restriction y cannot equal -1
Step-by-step explanation:
y+1
--------------
y^1 -1
Noticing that the denominator is the difference of squares and factoring
y+1
--------------
(y+1)(y-1)
Canceling like terms
1
--------------
y-1
with the restriction y cannot equal -1
