Question

2(x + 4) − 1 = 2x + 7

Answer 1

True for all x


2x+7=2x+7
-7 -7
2x = 2x
-2x -2x
0=0

maybe that seems right

Answer 2

All real numbers are solutions to this problem.

Explanation:

I) Simplify:

2(x + 4) - 1 = 2x + 7

x + 4 - 0.5 = x + 3.5 (Divide by 2)

x + 3.5 = x + 3.5 (Simplify x + 4 - 0.5)

x = x

II) Conclusion:

Any real number will work as a solution.