Solve Linear Equation: 3+4x-2+4x=17 with Like Terms

Question

3+4x21+4x=17 3+4x-2\cdot1+4x=17

Video Solution

Solution Steps

00:00 Solve
00:03 Let's solve each multiplication separately
00:10 Collect like terms
00:19 We want to isolate the unknown X
00:26 Let's arrange the equation so that one side has only the unknown X
00:35 Let's isolate the unknown X and calculate
00:44 And this is the solution to the question

Step-by-Step Solution

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

  • Simplify the equation by combining like terms.
  • Isolate x x on one side of the equation.
  • Solve for x x .

Now, let's work through each step:
First, simplify the expression on the left side of the equation:

3+4x21+4x=17 3 + 4x - 2 \cdot 1 + 4x = 17

Calculate 21 2 \cdot 1 , which is 2 2 . Then, replace that in the equation:

3+4x2+4x=17 3 + 4x - 2 + 4x = 17

Next, combine the constant terms 3 3 and 2-2:

(32)+4x+4x=17 (3 - 2) + 4x + 4x = 17

This simplifies to:

1+4x+4x=17 1 + 4x + 4x = 17

Now, combine the x x -terms:

1+8x=17 1 + 8x = 17

Isolate the x x -term by subtracting 1 1 from both sides:

8x=171 8x = 17 - 1

This simplifies to:

8x=16 8x = 16

Finally, solve for x x by dividing both sides by 8 8 :

x=168 x = \frac{16}{8}

Which simplifies to:

x=2 x = 2

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

Answer

x=2 x=2