3x - 7 = 2x - 5<em> add 7 to both sides</em>
3x = 2x + 2 <em>subtract 2x from borh sides</em>
<h3>x = 2</h3>
Check:
L = 3(2) - 7 = 6 - 7 = -1
R = 2(2) - 5 = 4 - 5 = -1
L = R CORRECT! :)
So, this problem asks us to construct an equation that relates the amount of money left to the amount of weeks that has gone by. First, let's assign variables. Let y be the amount of money left, while x is the number of weeks she receives money. The equation would be:
<em>y = 250 - 10x</em>
Answer:
Perimeter of the rectangle is 29x + 1 feet
Step-by-step explanation:
Length of the rectangle = 9.5x + 10 feet
Width of the rectangle = 5x - 9.5 feet
perimeter of rectangle = 2 ( length + width )
perimeter = 2 { (9.5x + 10) + (5x-9.5) }
perimeter = 2 ( 9.5x + 5x + 10 - 9.5 )
perimeter = 2 (14.5x + 0.5)
perimeter =29x + 1 feet
