Solve the Linear Equation: Finding X in 5x-15=30

Question

Solve the equation

5x−15=30 5x-15=30

Video Solution

Solution Steps

00:00 Solve
00:03 We want to isolate the unknown X
00:07 Let's arrange the equation so that one side has only the unknown X
00:21 Let's group terms
00:28 Let's isolate the unknown X and calculate
00:43 And this is the solution to the question

Step-by-Step Solution

We start by moving the sections:

5X-15 = 30
5X = 30+15

5X = 45

 

Now we divide by 5

X = 9

Answer

x=9 x=9

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Related Subjects

Solution of an equation First-degree equations with one unknown Solving Equations by Multiplying or Dividing Both Sides by the Same Number Solution by all methods

Question Types

Solving an Equation by Multiplication/ Division: Addition, subtraction, multiplication and division Solving Equations Using All Methods: Addition, subtraction, multiplication and division