Question

Is 2 a solution of 4x + 12 = 4? Complete the statement. Option 1: The equation is true when x = 2, so 2 is a solution. Option 2: The equation is false when x = 2, so 2 is not a solution. Option 3: The equation is true when x = 4, so 4 is a solution. Option 4: The equation is false when x = 4, so 4 is not a solution.

Answer 1

Answer: Option 2 and Option 4 are true. Solution of this equation is:

4x + 12 = 4

1. Change numbers position to right side, without forgetting to change the sign:

4x = 4 - 12
4x = -8

2. Divide both sides by number near x, to get answer:

4x = -8 |:4
x = -2

So the answer is -2.