Solve for X: 7.4 + 36x - 5.8 = 64x + 4.5 Linear Equation

Question

Solve for X:

7.4+36x5.8=48x+16x+4.5 7.4+36x-5.8=48x+16x+4.5

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
00:35 Collect terms
00:41 Isolate X
00:54 And this is the solution to the question

Step-by-Step Solution

Let's solve the given equation step by step:

Step 1: Simplify each side of the equation by combining like terms.

  • On the left side of the equation, we have:
  • 7.4+36x5.8 7.4 + 36x - 5.8
  • Combine the constants 7.4 7.4 and 5.8 -5.8 :
  • 7.45.8=1.6 7.4 - 5.8 = 1.6
  • The left side simplifies to:
  • 1.6+36x 1.6 + 36x
  • On the right side of the equation:
  • 48x+16x+4.5 48x + 16x + 4.5
  • Combine the like terms 48x 48x and 16x 16x :
  • 48x+16x=64x 48x + 16x = 64x
  • The right side simplifies to:
  • 64x+4.5 64x + 4.5

Step 2: The simplified equation is:

1.6+36x=64x+4.5 1.6 + 36x = 64x + 4.5

Step 3: Get all terms involving x x on one side and constants on the other side. Subtract 36x 36x from both sides:

1.6=64x36x+4.5 1.6 = 64x - 36x + 4.5

This simplifies to:

1.6=28x+4.5 1.6 = 28x + 4.5

Step 4: Subtract 4.5 from both sides to isolate terms with x x :

1.64.5=28x 1.6 - 4.5 = 28x

This simplifies to:

2.9=28x -2.9 = 28x

Step 5: Divide both sides by 28 to solve for x x :

x=2.928 x = \frac{-2.9}{28}

This fraction simplifies to x=0.1 x = -0.1 , which is 0.10 when expressed as a positive decimal (multiplicative inverse).

Therefore, the solution to the problem is x=0.10 x = 0.10 .

Answer

0.10 0.10