67.2 cause it is used to be different
9x^2-4x-3 and x=-2
= 9*(-2)^2 - 4*-2 - 3
= (9*4)+8-3
= 36+8-3
= 44-3
=41
Hey!
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Part A:
h - 40
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Part B:
40 - 40 = 0 overtime hours.
44 - 40 = 4 overtime hours.
48 - 40 = 8 overtime hours.
52 - 40 = 12 overtime hours.
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Hope This Helped! Good Luck!
6x-2y=16
(5x+y=24)*2
__________
6x-2y=16
10+2y=48 Add the equations”+”
—-
16x=64
X=4
So y=1
First to figure out the problem you need to distribute the 3 and the 4. You get, 3x-3-8=4+4x+5. Now you need to combine the coefficients. After doing this you will have 3x-11=9+4x. Now to get x by itself you need to subtract 3x from both sides. You will have -11=9+x. Then you subtract 9 from both sides and you end up with x=-20
3(x-1)-8=4(1+x)+5
3x-3-8= 4+4x+5
3x-11=9+4x
-3x -3x
-11=9+x
-9 -9
-20=x