write an equation and solve

Question

Terri lost 4lbs over the summer.  This is 4 more than half the weight she wants to lose by December. How much does Terri want to lose

Answer 1

Let the number of pound she lost in summer = 4

Let the number of pounds she wants to lose by Dec = x

 

 

Using these variables, we can set up an equation.

 

4 = (1/2)x + 4

 

 

Solve the equation for x.

 

Subtract 4 on both sides of the equation.

 

0 = (1/2)x

 

 

Divide both sides of the equation by 1/2.

 

0 = x

 

 

This means that by December, she does not want to lose any more weight.