Question

Exam Question
Solve x when 18 + 6x = 2x + 42

Answer 1

Explanation:

Hello, please consider the following.

`18+6x=2x+42\\ \\\text{subtract 18 from both parts of the equation }\\\\18+6x-18=6x=2x+42-18=2x+24 \\ \\\text{subtract 2x from both parts of the equation }\\ \\6x-2x=4x=24\\ \\\text{divide by 4 both parts of the equation }\\ \\x=(24)/(4)=6\\ \\\text{So the solution is ... }\\ \\\large \boxed{\ \ x=6 \ \ }`

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

Answer 2

x=6

Explanation:

first write out the equation that is given:

18+6x=2x+42

next subtract 2x from both sides:

18+6x-2x=2x-2x+42, which becomes 18+4x=42

then subtract 18 from both sides:

18-18+4x=42-18, which becomes 4x=24

finally divide both sides by 4:

4x/4=24/4, which becomes x=6

Therefore, x=6 is your answer