<span><span>Subtract 4 from both sides of the equation.
<span>2<span>|2x−2|</span>=16</span></span><span>Divide both sides of the equation by 2.
<span><span>|2x−2|</span>=8</span></span><span>Set 2x-2 equal to positive and negative 8.
<span>2x−2=8,2x−2=−8</span></span><span>Solve both equations for x.
<span>x=5,−<span>3</span></span></span></span>
100% - 7% - 30% = 63% of people are on the sand
? I'm not sure what you are asking?
The fourth answer is right as it uses both variables and values correctly
