Step-by-step explanation:
274 is the correct answer
Answer:
(w+4) (w-4)
Step-by-step explanation:
Answer:
x= 4/3
Step-by-step explanation:
Subtract 3/7 from both sides
-x= 2x-28/7
simplify
-x=2x-4
Subtract 2x from both sides
-3x=4
divide both sides by -3
x= 4/3
Answer:
y = 5 x=4
Step-by-step explanation:
Solve for x:
10 (x + 2) = 5 (x + 8)
Expand out terms of the left hand side:
10 x + 20 = 5 (x + 8)
Expand out terms of the right hand side:
10 x + 20 = 5 x + 40
Subtract 5 x from both sides:
(10 x - 5 x) + 20 = (5 x - 5 x) + 40
10 x - 5 x = 5 x:
5 x + 20 = (5 x - 5 x) + 40
5 x - 5 x = 0:
5 x + 20 = 40
Subtract 20 from both sides:
5 x + (20 - 20) = 40 - 20
20 - 20 = 0:
5 x = 40 - 20
40 - 20 = 20:
5 x = 20
Divide both sides of 5 x = 20 by 5:
(5 x)/5 = 20/5
5/5 = 1:
x = 20/5
The gcd of 20 and 5 is 5, so 20/5 = (5×4)/(5×1) = 5/5×4 = 4:
Answer: x = 4
