1/7x-6=3/7x+4
+6 +6
1/7x=3/7x+10
-3/7x -3/7x
-2/7x=10
x= -35
step 1, move -5 on the left side to the right side and change the sign then add up with 55
step 2, multiply 20 by (10 - 13x) by the associative property
step 3, add the coefficient of the variable x on the left side and move 20 to the right side by changing its sign
step 4, move -34x to the left side by changing the sign then add up with -17x
step 5, to find the x value, move the x coefficient to the right side and divide it, you get the value
Given points are (-1,-1) and (-3,5).
Now we have to find equation of line in slope intercept form y=mx+b
Let's find slope (m) first using formula :
Now we can plug m=-3 and any point says (-3,5) into formula y=mx+b
5=-3(-3)+b
5=9+b
5-9=b
-4=b
Now plug m=-3 and b=-4 into formula y=mx+b. We get:
y=-3x-4
Hence final answer is y=-3x-4.
Answer:
the area of the traingle for given measurements is 8cm^2