Help me with my math please & thanks?

1.) 3(x-8) = -2(x + 6) 2.) -5x - 12 - 3x = -18 3.) t/2 - 5 = 4t + 4 Use substitution or elimination: 1.) 3x + 2y = 9 -10x + 5y = -5 2.) y = x +2 y = -2x - 4 3.) y= 1/2 + 4 2y + 2x = 2 Using Quadratic Formula: 1.) x to the 2nd power + 6x + 9 = 0 2.) 2xto the 2nd power - 7x... show more 1.) 3(x-8) = -2(x + 6)

2.) -5x - 12 - 3x = -18

3.) t/2 - 5 = 4t + 4

Use substitution or elimination:

1.) 3x + 2y = 9
-10x + 5y = -5

2.) y = x +2
y = -2x - 4

3.) y= 1/2 + 4
2y + 2x = 2

Using Quadratic Formula:

1.) x to the 2nd power + 6x + 9 = 0

2.) 2xto the 2nd power - 7x = -5

3.) 4x to the 2nd power - 9 = 0

4.) x to then 2nd power + 8x = -15

5.) x to the2nd power - 3x - 10 = 0

6.) x to the 2nd power - 8x + 16 = 0

i dont understand ANY of these ones
5 answers 5