3-2-9
X
00:00
/
00:00
CC
On this problem, we want to use substitution, so we're going to
have five times the 33 -, 7 Y plus 6Y equaling 20.
If we distribute the five out, we get 165 -, 35 Y plus 6Y equal
20.
I'm going to subtract the 165 to the other side, and I'm going to
combine my Y term so I get -29 Y equal -145.
If I divide by -29, a negative divided by a negative is a +145
/ 29 is five.
Once I get the Y, we're going to substitute it into either of the
two equations to figure out our X.
The easier one in this situation is the bottom one.
So X equal 33 - 7 * 533 -, 35 is -2.
So our point is X is -2 when Y is five.