X represents John's age
Ben = x+5
John = x
x+2(x+5)=46
use the distributive property for 2(x+5)
x+2x+10=46
combine like terms
3x+10=46
subtract 10 from each side
3x=36
divide both sides by 3
x=12
John is 12 years old.
Given expressions;
f(x) = x² + 6x + 7
g(x) = 8x² - 2
h(x) = 3x + 4
k(x) = x - 3
Find f(2) - g(2). k(2)
f(2) = 2² + 6(2) + 7 = 23
g(2) = 8(2)² - 2 = 30
k(2) = 2 - 3 = -1
Now, f(2) - g(2). k(2) = 23 - (30)(-1)
= 53
The solution to the problem is 53
Answer:
905
Step-by-step explanation:
365+540=905
You get the answer x+5/x+3.
This is because all of the fractions have the same denominator, so just add the numerators and put them over x+3.
