Answer:
x = 10
Step-by-step explanation:
Given
21 = 4x - 9 - x, that is
21 = 3x - 9 ( add 9 to both sides )
30 = 3x ( divide both sides by 3 )
10 = x
21 = 4x - 9 - x
21 = 3x - 9
30 = 3x
6x^3 − 17x + 10
12x3 - 3(2x3 + 4x -1) - 5x + 7 Simplifed is 6x^3 − 17x + 10
20
Solution:
24 6
__ × __
30 6
= 4×5
=20
We have that
Then:
Finaly, the answer is
