Answer:
Step-by-step explanation:
Required
Which equals 
Collect like terms
Divide both sides by 2
Collect like terms
Divide both sides by 2
Collect like terms
Divide both sides by -2
Divide both sides by 2
Collect like terms
Divide both sides by 2
Collect like terms
Hence, the equations with the required solution are:
Answer:
Step-by-step explanation:
5(x + 3) Remove the brackets.
5*x + 3*5 Combine
5x + 15
3/5 of the total responses expected = 87...
3/5x = 87
x = 87 / (3/5)
x = 87 * 5/3
x = 435/3
x = 145 <=== what was expected
Answer: 3580.50
Step-by-step explanation:
Answer: x = 23 and y = 13
Explanation:
let x and y be the two number.
Where:
(x + y)/2 = 18 => x + y = 18 x 2 = 36
and:
x - y = 10
Thus we get:
x + y = 36 (1)
x - y = 10 (2)
Add (1) and (2):
x + y + x - y = 36 + 10
2x = 46
x = 23
If x = 23
then x - y = 10
23 - y = 10
-y = -13
y = 13
