Answer:
x = 1
Step-by-step explanation:
Let Rocco's number of lawns = x
Carly mowed 2 more lawns per week than did Rocco.
That is represented as x + 2
She did this for 6 weeks 6 ( x + 2)
And the result after 6 weeks was a total of 18 lawns
6(x + 2) = 18 Remove the brackets
6x + 12 = 18 Subtract 12 from both sides
6x = 18 - 12
6x = 6 Divide by 6
x = 6/6
x = 1
Therefore Rocco mowed 1 lawn a week.
