Answer:
6
Given expression:
Simplify following inside parenthesis
If following is |-a| then |-a| = a
Evaluate following
It will need to be 9 as 27 by 8 is 216 and 23 by 9 is 207 and the you subtract 207 from 216 and get 9
Answer:
6
Step-by-step explanation:
f(x) = 2(x-5)
f(8) = 2(8-5)
- parentheses comes first so, 8-5 = 3
- 2(3), so multiply and the final answer is 6
f(8) = 6
Answer:
(6,6)
Step-by-step explanation:
3x+5y=48
-3x+5y=12
Ok so when you're doing elimination you want to combine all of the like terms. In this case, we need to combine 3x and -3x, 5y and 5y, and 48 and 12. 3x and -3x cancel out, so that leaves you with 10y=60. Solving for y gives you y=6. Now you need to solve for x, so using 3x+5y=48, by plugging in y you get 3x+(5*6)=48. Simplifying that gives you 3x+30=48. Subtract 30 and divide by 3, and you get x=6. Thus the Answer is (x,y) or (6,6)
