Question on attached picture.
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Answer:
[tex]x = 7.5[/tex]
Step-by-step explanation:
Isolate the variable, do this by first multiplying both sides by two
[tex]4x - 1 = 2(x + 7)[/tex]
[tex]4x - 1 = 2x + 14[/tex]
Subtract 2x from both sides of the equation
[tex]2x - 1 = 14[/tex]
Add one to both sides of the equation
[tex]2x = 15[/tex]
Divide both sides by 2
[tex]x = 7.5[/tex]