Solve the Linear Equation: 5(X-8) + 1/2 = 0

Question

Solve for X:

5(x8)+12=0 5(x-8)+\frac{1}{2}=0

Video Solution

Solution Steps

00:00 Solve
00:04 Open brackets properly, multiply by each factor
00:20 Arrange the equation so that only the unknown X is on one side
00:28 Isolate X
00:41 And this is the solution to the question

Step-by-Step Solution

To solve the linear equation 5(x8)+12=0 5(x-8)+\frac{1}{2}=0 , follow these steps:

  • Step 1: Distribute the 5 across (x8) (x-8) .

The equation becomes:

5x40+12=0 5x - 40 + \frac{1}{2} = 0 .

  • Step 2: Combine the constants on the left side.

Combine 40-40 and 12\frac{1}{2}:

5x40+12=0 5x - 40 + \frac{1}{2} = 0 .

Convert 40-40 into a fraction to simplify: 40=802-40 = -\frac{80}{2}.

The equation becomes:

5x802+12=0 5x - \frac{80}{2} + \frac{1}{2} = 0 .

Simplify it to:

5x792=0 5x - \frac{79}{2} = 0 .

  • Step 3: Isolate x x .

To move 792-\frac{79}{2} to the other side, we add 792\frac{79}{2} to both sides:

5x=792 5x = \frac{79}{2} .

  • Step 4: Solve for x x .

Divide both sides by 5 to isolate x x :

x=792÷5 x = \frac{79}{2} \div 5 .

x=792×15 x = \frac{79}{2} \times \frac{1}{5} .

x=7910 x = \frac{79}{10} .

Therefore, the solution to the equation is x=7910 x = \frac{79}{10} .

Answer

7910 \frac{79}{10}