Answer
Greenberg hit 58. Ruth hit 60.
Work Step by Step
Let $x$ be the number hit by Greenberg.
The number hit by Ruth is $x+2$.
The sum of the page numbers is represented by the equation:
$x+x+2=118$
Solve for x, the number hit by Greenberg.
Combine like terms.
$2x+2=118$
Use the addition property of equality to subtract 2 from each side of the equation.
$2x+2-2=118-2$
Simplify.
$2x=116$
Use the multiplication property of equality to divide both sides of the equation by 2.
$2x\div2=116\div2$
Simplify.
$x=58$
Find the number hit by Ruth.
$x+2=58+2=60$
