Step-by-step explanation:
Since the options are not clear enough, please kindly see the attached file for more explanation
3x + 2y + y - 3x = 180
3y = 180
y = 180/3
y = 60
3x = y - 3x
Let y = 60
3x = 60 - 3x
3x + 3x = 60
6x = 60
x = 60/6
x = 10
Answer: x = 10, y = 60
Step-by-step explanation:
<u>Step 1: Cross Multiply</u>



<u>Step 2: Divide both sides by 4</u>


Answer: 
Area of ∆=1/2bh
80yd^2=1/2(b)(10yd)
80yd^2=5yd(b)
80yd^2÷5yd=b
16yd=b
9.6 Hope that help have a good day