Solve the Equation: Understanding -3 - X = 4

Question

Solve for X:

3x=4 -3-x=4

Video Solution

Solution Steps

00:00 Find X
00:03 Arrange the equation so that one side has only the unknown X
00:11 Collect terms
00:19 Convert from negative to positive
00:30 Negative times negative always equals positive
00:34 Positive times negative always equals negative
00:37 And this is the solution to the question

Step-by-Step Solution

To solve the equation 3x=4-3 - x = 4, let's follow these steps:

  • Start by isolating xx. We will first eliminate the x-x term from the left side by adding xx to both sides of the equation. This gives us:

3=4+x-3 = 4 + x

  • Now, subtract 44 from both sides to solve for xx. This step ensures xx is isolated:

34=x-3 - 4 = x

  • Calculate the result on the left side:

7=x-7 = x

Hence, the solution to the given equation is x=7 x = -7 .

Reviewing the choices, the correct choice is , which is 7-7.

Answer

-7