Solve for X in (3-2x)⋅5 = 4+12x: Linear Equation Practice

Question

Solve for X:

(32x)5=4+12x (3-2x)\cdot5=4+12x

Video Solution

Solution Steps

00:00 Solve
00:04 We want to isolate the unknown X
00:08 Open parentheses properly, multiply by each factor
00:20 Solve each multiplication separately
00:37 Positive times negative always equals negative
00:46 Isolate the unknown X
01:10 Collect terms
01:15 Simplify what's possible
01:34 Isolate the unknown X
01:44 Factor 22 into 11 and 2
01:47 Simplify what's possible
01:53 And this is the solution to the question

Step-by-Step Solution

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

  • Step 1: Distribute and simplify the equation.
  • Step 2: Combine like terms to isolate x x on one side of the equation.
  • Step 3: Solve for x x .

Let's begin solving the equation:

Step 1: Distribute and simplify.
The given equation is (32x)5=4+12x (3 - 2x) \cdot 5 = 4 + 12x .
First, we distribute 5 to both terms inside the parenthesis:

5352x=4+12x 5 \cdot 3 - 5 \cdot 2x = 4 + 12x .

This simplifies to:

1510x=4+12x 15 - 10x = 4 + 12x .

Step 2: Combine like terms to isolate x x on one side of the equation.
Add 10x 10x to both sides to get all terms involving x x on the right-hand side:

15=4+12x+10x 15 = 4 + 12x + 10x .

This simplifies to:

15=4+22x 15 = 4 + 22x .

Subtract 4 from both sides to isolate the term involving x x :

154=22x 15 - 4 = 22x .

This simplifies to:

11=22x 11 = 22x .

Step 3: Solve for x x .
To find x x , divide both sides of the equation by 22:

x=1122 x = \frac{11}{22} .

Upon simplification, 1122 \frac{11}{22} reduces to 12 \frac{1}{2} .

Therefore, the solution to the equation is x=12 x = \frac{1}{2} .

Answer

12 \frac{1}{2}