Answer:
x = 3/10
Step-by-step explanation:
−1/2 − (−4/5) = x
First, switch sides.
x = −1/2 − (−4/5)
You are subtracting a negative number. Subtracting a negative number means add a positive number.
x = -1/2 + 4/5
Now you are adding two fractions, so you need a common denominator. The LCD of 2 and 5 is 10.
x = -5/10 + 8/10
x = 3/10
6 + 2(x)2
6 + 2(3)2
=6 + 6(2)
=6 + 12
=18
Answer:
1/10
Step-by-step explanation:
Answer:
3x + 21 is your answer
Step-by-step explanation:
3(x+7)
3 × x = 3x
3 × 7 = 21
3x = 21
Answer:
(x+11)(x-11)
Step-by-step explanation:
