Question

Which equation has the solution x = 2

A.) 2x - 3 = 19 B.) 3x + 2 = 18 C.) 4x - 4 = -4 D.) 5x + 1 = 10

Answer 1

`a)2x - 3 = 19 \\ = > 2x = 19 + 3 \\ = > x = (22)/(2 ) \\ = > x = 11 \\ b)3x + 2 = 18 \\ = > 3x = 18 + 2 \\ = > 3x = 20 \\ = > x = (20)/(3) \\ = > x = 6.66666667 \\ c)4x - 4 = - 4 \\ = > 4x = - 4 + 4 \\ = > x = (0)/(4) \\ x = 0 \\ d)5x + 1 = 10 \\ = > 5x = 10 - 1 \\ = > 5x = 9 \\ = > x = (9)/(5) \\ x = 1.8`

therefore 1.8 =2 or x is not equal to 2