Answer:
12 pounds
Step-by-step explanation:
I will name variables for equation:
y = total cost
x = per pound
ABC company:
y = 2x + 14
XYZ Company:
y = 1.5x + 20
Because we're trying to find the weight (variable: x), we are going to cancel out the y variables:
Work:
y = 2x + 14
y = 1.5x + 20
y = 2x + 14
-y = -1.5x - 20
0 = 0.5x - 6
0.5x = 6
x = 6/0.5
x = 12
When the weight is 12 pounds, the costs will be equal
