Solve for X: 6.8 - 15x + 7x = 3.4 - 5.1 + 8x Linear Equation

Question

Solve for X:


6.815x+7x=3.45.1+8x 6.8-15x+7x=3.4-5.1+8x

Video Solution

Solution Steps

00:00 Find X
00:05 Collect terms
00:14 Arrange the equation so that only the unknown X is on one side
00:33 Collect terms
00:36 Isolate X
00:49 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Simplify both sides of the equation
  • Step 2: Move all x x terms to one side and constants to the other side
  • Step 3: Solve for x x

Now, let's work through each step:
Step 1: Simplify both sides of the equation:

On the left side, combine like terms:
6.815x+7x=6.88x 6.8 - 15x + 7x = 6.8 - 8x

On the right side, simplify:
3.45.1+8x=1.7+8x 3.4 - 5.1 + 8x = -1.7 + 8x

This gives us the simplified equation:
6.88x=1.7+8x 6.8 - 8x = -1.7 + 8x

Step 2: Move all x x terms to one side and constants to the other side.

Add 8x 8x to both sides to move x x terms to one side:
6.88x+8x=1.7+8x+8x 6.8 - 8x + 8x = -1.7 + 8x + 8x
This simplifies to:
6.8=1.7+16x 6.8 = -1.7 + 16x

Subsequently, add 1.7 1.7 to both sides to move constants to the opposite side:
6.8+1.7=16x 6.8 + 1.7 = 16x

This simplifies to:
8.5=16x 8.5 = 16x

Step 3: Solve for x x .

Divide both sides by 16 to isolate x x :
8.516=x \frac{8.5}{16} = x

This simplifies to:
x=0.53125 x = 0.53125

Rounding to two decimal places yields:
x=0.53 x = 0.53

Therefore, the solution to the problem is x=0.53 x = 0.53 .

Answer

0.53 0.53