Solve for X in (x-4) × 1/2 = 7: Linear Equation Solution

7=(x4)×12 7=(x-4)\times\frac{1}{2}

How much is X worth?

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Solve
00:03 Multiply by 2 to eliminate the fraction, multiply accordingly
00:11 Open parentheses properly, multiply by each factor
00:17 Arrange the equation so that one side has only the unknown X
00:23 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

7=(x4)×12 7=(x-4)\times\frac{1}{2}

How much is X worth?

2

Step-by-step solution

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

  • Step 1: Clear the fraction by multiplying both sides of the equation by 2.
  • Step 2: Isolate x x by adding 4 to both sides of the resulting equation.

Now, let's work through each step:
Step 1: Multiply both sides of the equation by 2 to eliminate the fraction:
7×2=(x4)×12×2 7 \times 2 = (x - 4) \times \frac{1}{2} \times 2

This simplifies to:
14=x4 14 = x - 4

Step 2: Solve for x x by adding 4 to both sides:
14+4=x4+4 14 + 4 = x - 4 + 4

This simplifies to:
x=18 x = 18

Therefore, the solution to the equation is x=18 x = 18 .

3

Final Answer

18 18

Practice Quiz

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Solve for x:

\( 2(4-x)=8 \)

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