Answer:
Explanation:
28x+15y=7230
Subtract 15y from both sides.
28x=7230−15y
Divide both sides by 28.
28
28x
=
28
7230−15y
Dividing by 28 undoes the multiplication by 28.
x=
28
7230−15y
Divide 7230−15y by 28.
x=−
28
15y
+
14
3615
Subtract 28 from both sides.
15y =
7230 - 282
Divide both sides by 15.
15y
15
7230
- 282
15
Dividing by 15 undoes the multiplication by 15.
y
7230
- 282
15
Divide 7230 - 28x by 15.
2
282
15
+ 482