4(2x-3)+7=8x
8x-12+7=8x
-8x..........-8x
-12+7=0
+12.....+12
7=12
-7...-7
No Solution:0≠5
4(2x-3+7)=8x
8x-12+28=8x
-8x............8x
-12+28=0
+12.......+12
28=12
-28...-28
No Solution: 0≠-16
The solution: x = 6/7 and x = -1
What is the solution set of 2x2 + x = 15
4a + 6 - 4a = -10 Combining like terms: 6 = -10 or 4 = 0 which is FALSE. So the solution set is empty.
'x' must be zero, so the solution set is [ 0 ].
Just get the X by itself. The answer is three. x+2=5 x=5-2 x=3
the empty set.
No.
(0, -14)
The solution: x = 6/7 and x = -1
Solution: x = 1/4 and x = -3.
{-1,7}
6x = 1 x = 1/6
It is: x = 5/3 and x = -3
They are: x = 5/3 and x = -3
-5x + x + 9 = -4x + 12 -4x + 9 = -4x + 12 9 = 12 This equation has no solution.
x2 + 49 = 0 ∴ x2 = -49 ∴ x = 7i
-4