(5)(3x)+(5)(4)+(5)(-x)
15x+20-5x
Answer: 10x+20
Answer:
I believe it is 21
Step-by-step explanation:
Answer:
12 = -3 - 3x
Step-by-step explanation:
Same concept as the last question I answered. First, let's derive a formula from the given model. So we have 3 negative x and 3 negative 1 which equal to 12 positive ones, this can be written as:
-3x - 3 = 12
which can be rewritten as
12 = -3 - 3x
Answer:
So the perimeter is 2(16+x) or 32+2x. The area is 8(x+8) or 8x+64.
Step-by-step explanation: