Answer: 8 balloons per box
8x18 + 8x12 = 144+96 = 240
-6 + 6 = 0
0 + -2x = 12 + 6 -2x = 12 + 6<span>4x+2(x-3)=8x+12 is our main problem right? so...
</span><span>4x + (-3 * 2 + x * 2) = 8x + 12
4x + (-6 + 2x) = 8x + 12
</span><span>So next we do:
</span><span>-6 + 4x + 2x = 8x + 12
Reorder the terms :) </span><span>-6 + 6x = 12 + 8x
</span>Now were going to solve for x
<span>-6 + -2x = 12 + 8x + -8x
</span><span>8x + -8x = 0
-6 + -2x = 12 + 0
-6 + -2x = 12
</span>-6 + 6 = 0
0 + -2x = 12 + 6
-2x = 12 + 6=
<span>-2x = 18
so now were just going to divide each side by -2
and so thats going to be like this
-2x = 18</span>
/ -2 /-2
0 -9
so whats left over is x = -9
So your answer is A.
I believe a rectangle has 4 right angles and 2 sets of congruent sides
Mark 6.0827
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