Yes, that's correct.
Here's another way to approach it:
<u>2 (x + 1) + 3 = 7</u>
Subtract 3 from each side: 2 (x + 1) = 4
Divide each side by 2 : x + 1 = 2
Subtract 1 from each side: <em> x = 1
</em>
Answer: x = 21
Step-by-step explanation:
look at the picture
The figure is a cuboid.
Hence, parallel edges to AH are BD, PY, and MK.
Hence, the answer is A and B.
replace the 1st equation into the 2nd one for y
-8x-4(2x-5) = -20
-8x-8x+20 =-20
-16x+20 = -40
-16x=-40
x = 5/2 = 2.5
y = 2x-5 - 2(2.5) - 5 = 5-5 = 0
one solution (2.5,0)
