Solve for X: 6.8 + 15x - 12.8 = 18x + 1.5 - 11x

Sole for X:


6.8+15x12.8=18x+1.511x 6.8+15x-12.8=18x+1.5-11x

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Find X
00:05 Collect like terms
00:15 Arrange the equation so that one side has only the unknown X
00:30 Collect like terms
00:35 Isolate X
00:44 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Sole for X:


6.8+15x12.8=18x+1.511x 6.8+15x-12.8=18x+1.5-11x

2

Step-by-step solution

To solve the equation 6.8+15x12.8=18x+1.511x 6.8 + 15x - 12.8 = 18x + 1.5 - 11x , we follow these steps:

Step 1: Simplify both sides by combining like terms.

  • Left side: Combine 6.8 6.8 and 12.8 -12.8 :
  • 6.812.8=6 6.8 - 12.8 = -6
  • Thus, the left side becomes 15x6 15x - 6 .
  • Right side: Combine 18x 18x and 11x -11x :
  • 18x11x=7x 18x - 11x = 7x
  • Thus, the right side becomes 7x+1.5 7x + 1.5 .

Now the equation is 15x6=7x+1.5 15x - 6 = 7x + 1.5 .

Step 2: Isolate the variable x x on one side.

  • Subtract 7x 7x from both sides to get:
  • 15x7x6=7x7x+1.5 15x - 7x - 6 = 7x - 7x + 1.5
  • Which simplifies to 8x6=1.5 8x - 6 = 1.5 .

Step 3: Solve for x x :

  • Add 6 to both sides:
  • 8x=1.5+6 8x = 1.5 + 6
  • Simplify: 8x=7.5 8x = 7.5 .
  • Divide both sides by 8 to solve for x x :
  • x=7.58 x = \frac{7.5}{8}
  • Which simplifies to x=0.9375 x = 0.9375 .

Thus, the value of x x is approximately 0.93 \mathbf{0.93} , considering the formatting of the problem's answer choices.

Therefore, the solution to the problem is x=0.93 x = 0.93 .

3

Final Answer

0.93 0.93

Practice Quiz

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Solve for X:

\( x - 3 + 5 = 8 - 2 \)

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