Answer:
B
Step-by-step explanation:
Let's eliminate the incorrect answers. C and D are incorrect, since anything to the power of 0 is equal to 1. A is incorrect, because -1 * -1 = 1 since the negatives cancel out. B is correct, because -1*-1*-1*-1*-1 has an odd number of negatives, and thus you are left with -1 instead of 1. Therefore, the answer is B.
Multiply top equation by -2, then add equations so b drops out....solve for a...plug in a to get b
I’m sure the answer is B < 15
<span>4x + 1 = 6x - 2, Prove: x = 3/2
-4x =-4x
1 =2x-2
-1 =-1
0 =2x-3
0 =2x+(-3)
2/3=2/3
</span><span>3x - 4 = 2(x + 8), Prove: x = 20
3x- 4 =2x+16
+4 =+4
3x =2x+20
-2x =-2x
1x =20
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