Solve the Linear Equation: 2x⋅4-1+x+2=19 Step-by-Step

Question

2x41+x+2=19 2x\cdot4-1+x+2=19

Video Solution

Solution Steps

00:00 Solve
00:03 Let's solve each multiplication separately
00:10 Let's collect like terms
00:17 We want to isolate the unknown X
00:20 Let's arrange the equation so that one side has only the unknown X
00:36 Let's isolate the unknown X and calculate
00:45 And this is the solution to the question

Step-by-Step Solution

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

  • Step 1: Eliminate multiplication by distributing 2x4 2x \cdot 4 .
  • Step 2: Combine like terms on the left side of the equation.
  • Step 3: Isolate the variable x x by moving constants to the opposite side.

Let's work through these steps:

Step 1: The given equation is 2x41+x+2=19 2x \cdot 4 - 1 + x + 2 = 19 .
Distribute the multiplication on 2x4 2x \cdot 4 to get 8x 8x :

8x1+x+2=19 8x - 1 + x + 2 = 19

Step 2: Combine the like terms (8x 8x and x x ):

9x1+2=19 9x - 1 + 2 = 19

Simplify further by combining constants 1+2-1 + 2 to get:

9x+1=19 9x + 1 = 19

Step 3: Isolate x x by subtracting 1 from both sides:

9x=18 9x = 18

Finally, divide both sides by 9 to solve for x x :

x=189=2 x = \frac{18}{9} = 2

Therefore, the solution to the problem is x=2 x = 2 .

Answer

x=2 x=2