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
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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