sunnyannette07 sunnyannette07

08-09-2014
Mathematics

contestada

2 (b+8)-9=5
I got x = -1 is that correct?

15= 8x -5+2x
I got x = 2 is that correct?

Respuesta :

TaylorBayley TaylorBayley

08-09-2014

2(b+8)-9=5
2b+16-9=5
2b+16=14
2b=-2
b=-1

15=8x-5+2x
20=8x+2x
10x=20
x=2

Indeed you are correct!

Answer Link

mariamikayla mariamikayla

08-09-2014

[tex]2(b+8)-9=5 \\ \\ 2b+16=5+9 \\ \\ 2b+16=16 \\ \\ 2b=16-16 \\ \\ 2b=0 \\ \\ \boxed{x=0} \\ \\ \\ 15=8x-5+2x \\ \\ 15=10x-5 \\ \\ 15+5=10x \\ \\ 20=10x \\\\ \boxed{x=\frac{20}{10}=2}[/tex]

Answer Link

Otras preguntas

Name the physical quantity measured by the area under velocity time graph?

notes on electric bulb

When an automotive battery is fully charged,the sulfuric acid and water mixture will have a specific gravity of about

Q14) When you break a bar magnet in half, how many poles does each piece have?

Which two triangles are congruent by the ASA Theorem? Complete the congruence statement

Name the physical quantity which changes contenously during uniform-circular motion.

One hectare is defined as 104 m2. One acre is 4 ✕ 104 ft2. How many acres are in one hectare?

what is the area of a circle with a diameter of 240mm

x-y+z=-4 3x+2y-z=5 -2x+3y-z=15 How do I solve this?

Name the physical quantity which changes contenously during uniform-circular motion.