Solve for X: 3.8 + 15x - 14 = 14x + 9x + 3.4

Question

Solve for X:

3.8+15x14=14x+9x+3.4 3.8+15x-14=14x+9x+3.4

Video Solution

Solution Steps

00:00 Find X
00:05 Collect terms
00:17 Arrange the equation so that one side has only the unknown X
00:43 Isolate X
00:55 And this is the solution to the question

Step-by-Step Solution

To solve the linear equation 3.8+15x14=14x+9x+3.4 3.8 + 15x - 14 = 14x + 9x + 3.4 , follow these steps:

  • Step 1: Simplify both sides of the equation by combining like terms.
    On the left side, combine the constant terms: 3.814=10.2 3.8 - 14 = -10.2 , resulting in 10.2+15x -10.2 + 15x .
    On the right side, combine the terms involving x x : 14x+9x=23x 14x + 9x = 23x , leading to 23x+3.4 23x + 3.4 .
  • Step 2: Rewrite the simplified equation:
    10.2+15x=23x+3.4-10.2 + 15x = 23x + 3.4.
  • Step 3: Isolate the variable x x :
    Subtract 15x 15x from both sides to get:
    10.2=23x15x+3.4-10.2 = 23x - 15x + 3.4
    Which simplifies to:
    10.2=8x+3.4-10.2 = 8x + 3.4.
  • Step 4: Move the constant term to the other side:
    Subtract 3.4 3.4 from both sides:
    10.23.4=8x-10.2 - 3.4 = 8x
    Simplify the left side:
    13.6=8x-13.6 = 8x.
  • Step 5: Solve for x x by dividing both sides by 8:
    x=13.68=1.7 x = \frac{-13.6}{8} = -1.7 .

Therefore, the solution to the equation is x=1.7 x = -1.7 .

Answer

1.7 -1.7