Answer:
- C. 13x = 39
- E. x + 7 = 10
- F. x – 1 = 2
Step-by-step explanation:
Putting 3 into each of the equations in place of x, you get ...
A. 3·3 = 1 . . . . false
B. 3·3 = 33 . . . . false
C. 13·3 = 39 . . . . TRUE
D. 3 +4 = 9 . . . . false
E. 3 +7 = 10 . . . . TRUE
F. 3 -1 = 2 . . . . TRUE
Applicable choices are C, E, F.
Answer:
x=8
x=-2
Step-by-step explanation:
∣x−3∣+4=9
= ∣x−3∣=5
<u>Positive term: (x-3)</u>
(x-3) = 5
Rearrange and Add up
x = 8
<u>Negative term: -(x-3)</u>
Multiply
-x+3 = 5
Rearrange and Add up
-x = 2
Multiply both sides by (-1)
x = -2
Answer:
3
Step-by-step explanation:
f(x) = (1/7)(7x) can be simplified to ...
f(x) = x
Then for x=3, ...
f(3) = 3
