Posted by **zach** on Wednesday, April 28, 2010 at 11:00pm.

Please help me! Sorry there are 4 questions I need to check my attempts with to see if I am on track. Thanks!!

1. 5-3[2(3x-4)+3]

2. Evaluate when x = -3 and y = 2

3x squared - 4y squared

_______________________

4x - 7y

3. -3/4y = -24

4.

m + 1 5 2m - 1

______ + ___ = ______

4 6 12

- algebra -
**PsyDAG**, Thursday, April 29, 2010 at 10:02am
1. 5-3[2(3x-4)+3]

Start from the inside and work outward.

5 - 3(6x - 8 + 3) = 5 - 18x + 5 = -18x

2. (3x^2 - 4y^2)/(4x -7y) Just plug in the numbers and calculate. (x^2 = x squared online.)

3. Multiply both sides by -4/3.

4. From the way you express the equation, I don't know which numbers belong where.

(m + 1)/4 + 5/6 = (2m - 1)/12?

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