#### Answer

$5$

#### Work Step by Step

DIstribute $7$ to obtain:
$7x-28=x+2$
Subtract $x$ on both sides of the equation to obtain:
$6x-28=2$
Add $28$ on both sides of the equation to obtain:
$6x = 30$
Divide by 6 on both sides of the equation to obtain:
$x=\frac{30}{6}
\\x=5$
Check:
$7(5-4) =5+2
\\7(1)=7
\\7=7$