Question

Which equation has no solution? 1+2x=1 1+2x=2x+1 2x−1=1+2x 2x−1=−1+2x

Answer 1

2x − 1 = 1 + 2x

Explanation:

A.

1 + 2x = 1

2x = =0

x = 0

1 solution, x = 0.

B.

1 + 2x = 2x + 1

1 = 1

Infinite number of solutions, all real numbers.

C.

2x − 1 = 1 + 2x

0 = 2

No solution

D.

2x − 1 = −1 + 2x

-1 = -1

Infinite number of solutions, all real numbers.