4x-1divide by 2=x+7
what is x

X= 2.5
just move the terms collect the terms calculate it, divide both sides !!

A. p = 2(l + w)p/2 - l = ww = p/2 - l b. while isolating the variable w in the equation, i first divided both sides by 2 and then i subtracted l from both sides. i hope this .