You must set the equations equal to each other.
Meaning, 3y - 5 = 5y
divide both sides by -3y, you'll get -5/2.
Then make an equation:
2ax = bd
2(3y-5) = 5y
6y − 10 = 5y
Subtract 5y from both sides.
y − 10 =0
Add 10 to both sides.
<span>y = 10</span>
7x+55=90 angle in a rectangle is
7x=90-55 90
7x=35
x=35/7
x=5
3x + 2y = 7
y = x - 4
3x + 2(x - 4) = 7
3x + 2x - 8 = 7
5x = 7 + 8
5x = 15
x = 15/5
x = 3
y = x - 4
y = (3) - 4
y = -1
the solution to the set is (3, -1)
hope this helps :)
