Solve for X in -3x+8=7x-12: Linear Equation Solution

Question

Solve for X:

3x+8=7x12 -3x+8=7x-12

Video Solution

Solution Steps

00:06 Let's solve the problem together.
00:10 First, we need to focus on getting X by itself.
00:29 Let's simplify what we can to make it easier.
00:42 Now, keep working to free X from the equation.
01:05 Simplifying again will help us a lot.
01:10 Almost there! Let's get X completely alone.
01:20 And there we have it, the solution to our question!

Step-by-Step Solution

We will solve the equation step by step:

Given equation:
3x+8=7x12 -3x + 8 = 7x - 12

  • Step 1: Move all x x -terms to one side by adding 3x 3x to both sides.
    3x+3x+8=7x+3x12 -3x + 3x + 8 = 7x + 3x - 12
    This simplifies to:
    8=10x12 8 = 10x - 12
  • Step 2: Move constant terms to the opposite side by adding 12 12 to both sides.
    8+12=10x12+12 8 + 12 = 10x - 12 + 12
    Which simplifies to:
    20=10x 20 = 10x
  • Step 3: Solve for x x by dividing both sides by 10 10 .
    2010=10x10 \frac{20}{10} = \frac{10x}{10}
    This gives us:
    x=2 x = 2

Therefore, the solution to the equation is x=2 x = 2 .

Answer

2 2