Posted by **upbeat** on Tuesday, July 20, 2010 at 12:45pm.

solve using the substitution method

8x+6y=8

-9x+y=22

The solution is (___,___)

- substitution method -
**Henry**, Tuesday, July 20, 2010 at 2:35pm
1.8X + 6Y = 8

2. -9X + Y = 22

Using Eq. 2, solve for y.

Y = 9X + 22

Substitute 9X + 22 for y in Eq 1:

8X +6(9X + 22) = 8.

Solve for X:

8X + 54X + 132 = 8

X = -2.

In Eq. 2,substitute -2 for X and

solve for Y:

-9(-2) + Y = 22, Y = 4

Solution: X = -2, and Y = 4.

- substitution method -
**Anonymous**, Tuesday, July 20, 2010 at 3:02pm
thank you Henry!!!!

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